1
|
Radziemska M, Blazejczyk A, Gusiatin MZ, Cydzik-Kwiatkowska A, Majewski G, Brtnický M. Compost-diatomite-based phytostabilization course under extreme environmental conditions in terms of high pollutant contents and low temperatures. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 948:174917. [PMID: 39034003 DOI: 10.1016/j.scitotenv.2024.174917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Revised: 07/05/2024] [Accepted: 07/18/2024] [Indexed: 07/23/2024]
Abstract
The effects of changes in environmental temperatures on the immobilization or removal of cationic potentially toxic elements (PTE) in heavily polluted soils are often poorly understood, although both are widely studied in the context of phytostabilization. To address this issue, a novel compost-diatomite hybrid (CDH) amendment was developed and applied for assisted phytostabilization at two external temperature regimes. (Cd/Ni/Cu/Zn)-extremely polluted soils (unenriched and CDH-enriched) were cultivated with perennial ryegrass and native soil microbiome under greenhouse conditions and then transferred to freeze-thaw conditions (FTC). The decrease in metal potential toxicity in soils subjected to phytostabilization following both temperature treatments was characterized by a combination of sequential extraction and atomic absorption measurements. The soil microbiome was characterized by high-throughput sequencing. In a relative comparison, the greatest decrease in the content of all PTEs in CDH-enriched soil (compared to unenriched soil) appeared in FTC. Furthermore, under the influence of FTC, in the relative comparison between two CDH-enriched soils (exposed-, and not-exposed- to FTC) and two unenriched soils (exposed-, and not-exposed- to FTC), the content of all PTEs decreased more sharply in the CDH-enriched series than in the unenriched series. The largest redistribution into four sequentially extracted fractions in CDH-enriched soil was found for Zn. Based on the distribution pattern, Zn immobilization was greater in CDH-enriched soil in FTC. CDH increased species richness in the soil, while FTC stimulated the growth of Bacteroidia, Alphaproteobacteria, Theromomicrobia, and Gammaproteobacteria. The analysis of the functionalities of the microbiome indicated enhanced metal transportation and defense systems in samples exposed to FTC. The current research is crucial for understanding how extreme environmental conditions in both cases high pollutant levels and low temperatures affect the movement and transformation of PTEs in polluted soils during phytostabilization.
Collapse
Affiliation(s)
- Maja Radziemska
- Institute of Environmental Engineering, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland.
| | - Aurelia Blazejczyk
- Institute of Civil Engineering, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Mariusz Z Gusiatin
- Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Słoneczna St. 45G, 10-719 Olsztyn, Poland
| | - Agnieszka Cydzik-Kwiatkowska
- Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Słoneczna St. 45G, 10-719 Olsztyn, Poland
| | - Grzegorz Majewski
- Institute of Environmental Engineering, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Martin Brtnický
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic
| |
Collapse
|
2
|
Bicalho SF, Pegoraro RF, Almeida Neta MN, Barroso AMF, França LO, Santos LS, Silva RR, Rodrigues MN, Sampaio RA, Viana LB. Biochemical changes, metal content, and spectroscopic analysis in sewage sludge composted with lignocellulosic residue using FTIR-MIR and FTIR-NIR. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:35727-35743. [PMID: 38740679 DOI: 10.1007/s11356-024-33652-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 05/07/2024] [Indexed: 05/16/2024]
Abstract
The use of lignocellulosic residues, originating from sawdust, in composting sewage sludge for organic fertilizer production, is a practice of growing interest. However, few studies have explored the effect of the proportion of sawdust and sewage sludge raw materials on composting performance in the humification process. This study assessed the addition of sawdust in the sewage sludge composting process, regarding carbon content, presence of heavy metals, and humification of the organic compost. The experimental design employed was a randomized complete block design with five treatments featuring different proportions of organic residues to achieve C/N ratios between 30-1 (T1: 100% sewage sludge and 0% sawdust, T2: 86% sewage sludge and 14.0% sawdust, T3: 67% sewage sludge and 33% sawdust, T4: 55% sewage sludge and 45% sawdust, and T5: 46.5% sewage sludge and 53.5% sawdust) and five replications, totaling 25 experimental units. The addition of lignocellulosic residue in sewage sludge composting increased the levels of TOC and the C/N ratio, reduced the levels of pH, P, N, Na, Ba, and Cr, and did not interfere with the levels of K, Ca, Mg, S, CEC, labile carbon, and metals Fe, Zn, Cu, Mn, Ni, and Pb. The increase in the proportion of sawdust residue favored the degradation of aliphatic groups, increasing the presence of aromatic structures and reducing humification at the end of composting. The use of sawdust as a lignocellulosic residue in sewage sludge composting is a viable and efficient alternative to produce high-quality organomineral fertilizers.
Collapse
Affiliation(s)
| | - Rodinei Facco Pegoraro
- Universidade Federal de Minas Gerais, Instituto de Ciências Agrárias, Av. Universitária 1000, Montes Claros, MG, 39400-090, Brazil
| | - Maria Nilfa Almeida Neta
- Universidade Federal de Minas Gerais, Instituto de Ciências Agrárias, Av. Universitária 1000, Montes Claros, MG, 39400-090, Brazil.
| | - Aline Martins Ferreira Barroso
- Universidade Federal de Minas Gerais, Instituto de Ciências Agrárias, Av. Universitária 1000, Montes Claros, MG, 39400-090, Brazil
| | - Letícia Oliveira França
- Universidade Federal de Minas Gerais, Instituto de Ciências Agrárias, Av. Universitária 1000, Montes Claros, MG, 39400-090, Brazil
| | - Leandro Soares Santos
- Universidade Estadual Do Sudoeste da Bahia, UESB. BR 415, Itapetinga, BA, 45700-000, Brazil
| | | | - Márcio Neves Rodrigues
- Universidade Federal de Minas Gerais, Instituto de Ciências Agrárias, Av. Universitária 1000, Montes Claros, MG, 39400-090, Brazil
| | - Regynaldo Arruda Sampaio
- Universidade Federal de Minas Gerais, Instituto de Ciências Agrárias, Av. Universitária 1000, Montes Claros, MG, 39400-090, Brazil
| | - Lucas Barbosa Viana
- Universidade Federal de Minas Gerais, Instituto de Ciências Agrárias, Av. Universitária 1000, Montes Claros, MG, 39400-090, Brazil
| |
Collapse
|
3
|
Martins MR, Zanatta MCK, Ferreira WG, Poletti ECC, Pires MSG. Ecotoxicological assessment of natural soil amended with sewage sludge: the impacts on soil edaphic organisms and microbial community. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1325. [PMID: 37845580 DOI: 10.1007/s10661-023-11953-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 10/05/2023] [Indexed: 10/18/2023]
Abstract
Sewage sludge usage as agricultural soil amendment is a well-known practice employed worldwide. However, certain components may pose risks to the soil ecosystem. For a better verification of the potential adverse effects on the soil biota, biological assays have become an indispensable tool for an accurate understanding of the residue's behavior on soil, as well as its potential toxicity. Accordingly, to properly assess the effects of natural tropical soil (Oxisoil) amended with sewage sludge, we conducted toxicological tests with edaphic organisms (Enchytraeus crypticus and Folsomia candida) and microbial biomass (through respirometric assessment). Results indicate that E. crypticus and F. candida present similar reproduction sensitivity behavior to sewage sludge. For the microbiological analysis, the results suggest that microbial activity was stimulated by sludge application. For further evaluation of respiration of the microbial community and CO2 stabilization values behavior, Ford-Walford modeling was applied and presented limit values for sludge application in soil for 1.5 g kg-1 and 15.0 g kg-1 of, approximately, 55 mg and 88 mg, respectively. CO2 releases were faster and reached stability within 18 weeks for the soil with higher sludge content (15.0 g kg-1 of dry soil). In contrast, CO2 releases were slower for the soil with lower sludge content (1.5 g kg-1 of dry soil), and until the experiment's final period (21 weeks) respiration behavior did not reach stability. This study indicates that the stabilized sewage sludge, at the considered recommended application rate, presents a low toxicity risk for the studied bioindicators, being suitable for agricultural use.
Collapse
|
4
|
Dang HTT, Pham LTN, Pham TT, Nguyen HX, Tran NTH, Nguyen KM. Effect of biowaste and construction waste additives on mechanical dewaterability of lake sediment for brick production. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2023. [PMID: 37378540 DOI: 10.1080/10962247.2023.2228265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023]
Abstract
Nowadays, when the zero-waste strategy is an inevitable component of the circular economy, the reuse of waste, including dredged sludges, has drawn the attention of many researchers. This study evaluated four kinds of bio-wastes (corn core powder, rice husk powder, sugarcane bagasse powder, and peanut shell powders) and two kinds of construction wastes (autoclaved aerated concrete-AAC and pavement stone) in enhancing the dewaterability of dredged sludge from the lake, in which the sludges would then be reused for brick production. The results showed that the moisture contents decreased from 62±0.14% to 57±1.89% after mixing and then to 35±8.31% after compressing for the construction waste-blended sludge. Among the bio-wastes, the sugarcane bagasse additive performed the best at a mixing ratio of 1:3 by weight and rice husk powder worked best at a mixing ratio of 1:5 by weight. The organic matter was increased up to 80% when the bio-wastes were added, while it was decreased to 5% for the case of construction wastes. The optimum percentage of sludge in the mixture to meet all the oxide contents in the brick and energy saving shall be about 30%. The results have revealed a potentially green route for brick production with lake sediment and bio-waste/construction wastes.
Collapse
Affiliation(s)
- Huyen T T Dang
- Faculty of Environmental Engineering, National University of Civil Engineering, 55 Giai Phong Street, Hanoi, Vietnam
| | - Lan T N Pham
- Faculty of Chemistry and Environment, Thuy Loi University, 175 Tay Son street, Hanoi, Vietnam
| | - Thuy T Pham
- Faculty of Environmental Sciences, University of Science, Vietnam National University, 334 Nguyen Trai street, Hanoi, Vietnam
| | - Huan X Nguyen
- Faculty of Environmental Sciences, University of Science, Vietnam National University, 334 Nguyen Trai street, Hanoi, Vietnam
| | - Nga T H Tran
- Faculty of Environmental Sciences, University of Science, Vietnam National University, 334 Nguyen Trai street, Hanoi, Vietnam
| | - Khai M Nguyen
- Faculty of Environmental Sciences, University of Science, Vietnam National University, 334 Nguyen Trai street, Hanoi, Vietnam
| |
Collapse
|
5
|
Ye Y, Hao Ngo H, Guo W, Woong Chang S, Duc Nguyen D, Fu Q, Wei W, Ni B, Cheng D, Liu Y. A critical review on utilization of sewage sludge as environmental functional materials. BIORESOURCE TECHNOLOGY 2022; 363:127984. [PMID: 36126850 DOI: 10.1016/j.biortech.2022.127984] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/11/2022] [Accepted: 09/12/2022] [Indexed: 06/15/2023]
Abstract
Sewage sludge (SS) is increasingly used as an environment functional material to reduce or control pollution and improve plant growth because of the large amounts of carbon and essential plant nutrients in it. To achieve the best application results, it is essential to comprehensively review recent progress in SS utilization. This review aims to fill the gaps in knowledge by describing the properties of SS, and its usage as adsorbents, catalysts and fertilizers, and certain application mechanisms. Although SS generates several benefits for the environment and humans, many challenges still exist to limit the application, including the risks posed by potentially toxic substances (e.g., heavy metals) in SS. Therefore, future research directions are discussed and how to make SS applications more feasible in terms of technology and economy.
Collapse
Affiliation(s)
- Yuanyao Ye
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Wuhan 430074, PR China
| | - Huu Hao Ngo
- Centre for Technology in Water and Wastewater, University of Technology Sydney, NSW 2007, Australia.
| | - Wenshan Guo
- Centre for Technology in Water and Wastewater, University of Technology Sydney, NSW 2007, Australia
| | - Soon Woong Chang
- Department of Environmental Energy Engineering, Kyonggi University, 442-760, Republic of Korea
| | - Dinh Duc Nguyen
- Department of Environmental Energy Engineering, Kyonggi University, 442-760, Republic of Korea
| | - Qiang Fu
- Centre for Technology in Water and Wastewater, University of Technology Sydney, NSW 2007, Australia
| | - Wei Wei
- Centre for Technology in Water and Wastewater, University of Technology Sydney, NSW 2007, Australia
| | - Bingjie Ni
- Centre for Technology in Water and Wastewater, University of Technology Sydney, NSW 2007, Australia
| | - Dongle Cheng
- Centre for Technology in Water and Wastewater, University of Technology Sydney, NSW 2007, Australia
| | - Yi Liu
- Department of Environmental Science and Engineering, Fudan University, 2205 Songhu Road, Shanghai 200438, PR China
| |
Collapse
|
6
|
Municipal Sewage Sludge Composting in the Two-Stage System: The Role of Different Bulking Agents and Amendments. ENERGIES 2022. [DOI: 10.3390/en15145014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study assessed the effect of different lignocellulosic amendments and bulking agents on compost stability (based on a 4 day respiration activity test, AT4, and self-heating factor, SHF) and maturity (based on the nitrification index Initr and the ratio of C in humic acids, HA, to total organic carbon, TOC, in compost, CHA/TOC). With all feedstock compositions (FCs), the share of sewage sludge was 79% (wet mass). For FC1, wood chips (13.5%) and wheat straw (7.5%) were used as bulking agents and amendments; for FC2, instead of wood chips, energy willow was added; for FC3, pine bark (13.5%) and conifer sawdust (7.5%) were used. All FCs produced stable and mature compost; however, with FC2, the thermophilic phase last 3 days longer than with the other FCs. Moreover, an AT4 value below 10 g O2/kg dry mass (d.m.) was obtained the earliest with FC2 (after 45 days, ca. 15–20 days earlier than with other FCs). With FC2, Initr below 0.5 was obtained in ca. 60 days, 10 days earlier than with FC3 and 30 days earlier than with FC1. The highest net increases in HS (86.0 mg C/g organic matter (OM)) and HA (56.3 mg C/g OM) were also noted with FC2; with other FCs, the concentrations of these compounds were from 1.3- to 1.5-fold (HS) and from 1.4- to 1.9-fold (HA) lower. With FC2, the highest CHA/TOC (15.5%) was also noted, indicating that this compost contained the largest share of the most stable form of organic carbon. The rates of OM removal in the bioreactor ranged from 7.8 to 10.1 g/(kg d.m.·day). The rates of SH and HA formation ranged from 1.63 to 4.83 mg C/(g OM·day) and from 1.23 to 1.80 mg C/(g OM·day), respectively. This means that, through the choice of the amendments and bulking agents, the length of the composting time needed to obtain a stable and mature product can be controlled.
Collapse
|
7
|
Hoang SA, Bolan N, Madhubashani AMP, Vithanage M, Perera V, Wijesekara H, Wang H, Srivastava P, Kirkham MB, Mickan BS, Rinklebe J, Siddique KHM. Treatment processes to eliminate potential environmental hazards and restore agronomic value of sewage sludge: A review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 293:118564. [PMID: 34838711 DOI: 10.1016/j.envpol.2021.118564] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 11/19/2021] [Accepted: 11/19/2021] [Indexed: 05/22/2023]
Abstract
Land application of sewage sludge is increasingly used as an alternative to landfilling and incineration owing to a considerable content of carbon and essential plant nutrients in sewage sludge. However, the presence of chemical and biological contaminants in sewage sludge poses potential dangers; therefore, sewage sludge must be suitably treated before being applied to soils. The most common methods include anaerobic digestion, aerobic composting, lime stabilization, incineration, and pyrolysis. These methods aim at stabilizing sewage sludge, to eliminate its potential environmental pollution and restore its agronomic value. To achieve best results on land, a comprehensive understanding of the transformation of organic matter, nutrients, and contaminants during these sewage-sludge treatments is essential; however, this information is still lacking. This review aims to fill this knowledge gap by presenting various approaches to treat sewage sludge, transformation processes of some major nutrients and pollutants during treatment, and potential impacts on soils. Despite these treatments, overtime there are still some potential risks of land application of treated sewage sludge. Potentially toxic substances remain the main concern regarding the reuse of treated sewage sludge on land. Therefore, further treatment may be applied, and long-term field studies are warranted, to prevent possible adverse effects of treated sewage sludge on the ecosystem and human health and enable its land application.
Collapse
Affiliation(s)
- Son A Hoang
- Global Innovative Centre for Advanced Nanomaterials, College of Engineering, Science and Environment, University of Newcastle, Callaghan, NSW, 2308, Australia; Division of Urban Infrastructural Engineering, Mientrung University of Civil Engineering, Phu Yen, 56000, Viet Nam
| | - Nanthi Bolan
- School of Agriculture and Environment, The University of Western Australia, Perth, WA, 6001, Australia; The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, 6001, Australia.
| | - A M P Madhubashani
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka; Department of Chemical and Process Engineering, University of Moratuwa, Moratuwa, Sri Lanka
| | - Meththika Vithanage
- Ecosphere Resilience Research Centre, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - Vishma Perera
- Department of Natural Resources, Faculty of Applied Sciences, Sabaragamuwa University, Belihuloya, Sri Lanka
| | - Hasintha Wijesekara
- Department of Natural Resources, Faculty of Applied Sciences, Sabaragamuwa University, Belihuloya, Sri Lanka
| | - Hailong Wang
- Biochar Engineering Technology Research Center of Guangdong Province, School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong, 528000, China
| | - Prashant Srivastava
- CSIRO, The Commonwealth Scientific and Industrial Research Organisation Land and Water, PMB 2, Glen Osmond, South Australia, 5064, Australia
| | - M B Kirkham
- Department of Agronomy, Kansas State University, Manhattan, KS, USA
| | - Bede S Mickan
- School of Agriculture and Environment, The University of Western Australia, Perth, WA, 6001, Australia; The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, 6001, Australia
| | - Jörg Rinklebe
- Laboratory of Soil- and Groundwater-Management, Institute of Soil Engineering, Waste- and Water Science, Faculty of Architecture und Civil Engineering, University of Wuppertal, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, Seoul, Republic of Korea
| | - Kadambot H M Siddique
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, 6001, Australia
| |
Collapse
|
8
|
Rimkus A, Gudrā D, Dubova L, Fridmanis D, Alsiņa I, Muter O. Stimulation of sewage sludge treatment by carbon sources and bioaugmentation with a sludge-derived microbial consortium. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 783:146989. [PMID: 33865123 DOI: 10.1016/j.scitotenv.2021.146989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/28/2021] [Accepted: 04/02/2021] [Indexed: 06/12/2023]
Abstract
Recently, sewage sludge (SS) disposal has become one of the greatest global challenges. In this study, we aimed to evaluate the effect of faba bean straw (Straw-B), wheat straw (Straw-W), and wood-chip pellets (WCP) amended to SS, as well as bioaugmentation (BA), on the physicochemical characteristics and structure of the microbial community of the treated SS. Sixteen days of incubation of SS-containing mixtures revealed the highest efficiency of Straw-W(BA) in terms of SS stabilisation, i.e., the highest and most stable respiration intensity, the lowest ammonia emission, and the highest stimulation effect on the cress seedling growth. Shotgun sequencing data analysis showed that Proteobacteria dominated in the raw SS with 60.17% reads, which consisted of 16.40%, 29.18%, and 12.33% of Alphaproteobacteria, Betaproteobacteria, and Gammaproteobacteria, respectively. All treated samples were characterised by an increased abundance of Firmicutes (32.70-53.84%). A remarkable increase in virus abundance (0.34% reads) was detected in the treated SS, which was incubated without C amendment and bioaugmentation. The addition of C sources to the SS changed some physicochemical characteristics of the mixture. All of these findings provide novel insights toward a mechanistic understanding of the fate of the human sewage microbiome in wastewater and other environments.
Collapse
Affiliation(s)
- Alīna Rimkus
- Institute of Microbiology & Biotechnology, University of Latvia, 1 Jelgavas Str., Riga LV-1004, Latvia
| | - Dita Gudrā
- Latvian Biomedical Research and Study Center, 1 Ratsupites Str., Riga LV-1067, Latvia
| | - Laila Dubova
- Institute of Soil and Plant Sciences, Latvia University of Life Sciences and Technologies, Liela 2, Jelgava LV-3001, Latvia
| | - Dāvids Fridmanis
- Latvian Biomedical Research and Study Center, 1 Ratsupites Str., Riga LV-1067, Latvia
| | - Ina Alsiņa
- Institute of Soil and Plant Sciences, Latvia University of Life Sciences and Technologies, Liela 2, Jelgava LV-3001, Latvia
| | - Olga Muter
- Institute of Microbiology & Biotechnology, University of Latvia, 1 Jelgavas Str., Riga LV-1004, Latvia.
| |
Collapse
|
9
|
Influence of the Die Height on the Density of the Briquette Produced from Shredded Logging Residues. MATERIALS 2021; 14:ma14133698. [PMID: 34279269 PMCID: PMC8269916 DOI: 10.3390/ma14133698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/25/2021] [Accepted: 06/28/2021] [Indexed: 11/17/2022]
Abstract
An alternative to plant biomass of various origins are forest logging residues. They differ significantly from other, previously used plant materials. This difference is due to the heterogeneous composition and relatively large size of individual particles. This research on the compaction of this type of shredded material was aimed at determining the influence of the die height on the density and relaxation of briquettes. This parameter is crucial for the proper construction of compaction devices. The measurements were carried out for the same fractional composition of the shredded logging residues, with variable input parameters of the material and process. It was found that the briquette density and relaxation are influenced by the die height, as well as the material moisture content and process temperature. The highest density at maximum compaction pressure (1.40 g·cm-3) was obtained at a moisture content of 16%, temperature of 80 °C, and the lowest die height (195 mm). In the case of the briquette density after ejection from the die, the best results were obtained at the same temperature and die height but at a moisture content of 9%. The tests confirmed that, regardless of the process temperature and material moisture, the briquette density increases as the die height is reduced. The relaxation coefficient of compacted logging residues ranges from 21.7% to 50.1% and depends mainly on the material moisture content and the temperature of the process. The lowest value of the relaxation coefficient (21.7 ± 1.61) was obtained at 9% moisture content, 60 °C temperature, and 220 mm die height.
Collapse
|
10
|
Golbaz S, Zamanzadeh MZ, Pasalari H, Farzadkia M. Assessment of co-composting of sewage sludge, woodchips, and sawdust: feedstock quality and design and compilation of computational model. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:12414-12427. [PMID: 33078354 DOI: 10.1007/s11356-020-11237-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 10/12/2020] [Indexed: 06/11/2023]
Abstract
Composting process of sewage sludge requires a preprocessing step in order to prepare the appropriate mixture of dewatered sludge (Xs) with amendment (Xa), bulking agent (Xb), and/or recycled materials (Xr). This research aimed to develop a novel mathematical model for finding an optimal mixture ratio of dewatered sludge with the aforementioned influencing elements on co-composting process. Seven feasible scenarios were presented and the best one was selected in viewpoint of technical and economic perspectives. The optimum mixture was prepared and its quality was evaluated in the terms of physical, chemical, and microbial characteristics. The optimum mixture was loaded in an aerated static pile composting reactor in order to evaluate the quality of the final compost product. If the test results were not in compliance with the USEPA standards, the model was iteratively modified to fulfill the desired objective. The model was validated using the experimental results. The mixture of Xs:Xa:Xb:Xr with a weight ratio 7.4:1.0:1.4:2.3 allowed optimal moisture content (59.8 ± 0.5%), organic matter (80.0 ± 2.6%), dry matter (40.2 ± 0.6%), C/N ratio (28.0 ± 1.6), and free air space (> 30%) across the composting pile. The final product of compost met the heavy metal and microbial requirements for land application. It can be concluded this mathematical model is a promising method for selecting the optimal amount and type of materials for preparing the initial mixture of co-composting process.
Collapse
Affiliation(s)
- Somayeh Golbaz
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mir Zaman Zamanzadeh
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Hasan Pasalari
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Mahdi Farzadkia
- Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran.
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
11
|
Assessment of the Composition of Forest Waste in Terms of Its Further Use. MATERIALS 2021; 14:ma14040973. [PMID: 33670829 PMCID: PMC7922906 DOI: 10.3390/ma14040973] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/11/2021] [Accepted: 02/15/2021] [Indexed: 01/11/2023]
Abstract
This paper presents the results of the analysis of the chemical composition and content of heavy metal contamination in forest logging residues, in order to assess the possibility for their further utilisation. The samples were divided into 9 groups, which included coniferous tree cones, wood, and other multi-species logging residues. The elementary composition, ash content, and calorific value were determined as energy use indicators for the samples. Additionally, the content of heavy and alkali metals, which may affect combustion processes and pollutant emissions, was tested. The high content of heavy metals may also disqualify these residues for other uses. The research shows that the test residues are suitable for energy use due to their high calorific value and low content of heavy metals. However, an increased ash content in some samples and the presence of alkali metals, causing high-temperature corrosion of boilers, may disqualify them as a potential fuel in the combustion process. The forest residues may be used in other thermal processes such as pyrolysis or gasification. A low content of heavy metals and a high content of organic matter permit the use of these residues for the production of adsorbents or composite materials.
Collapse
|
12
|
Mazzeo DEC, Misovic A, Oliveira FA, Levy CE, Oehlmann J, de Marchi MRR. Effects of biostimulation by sugarcane bagasse and coffee grounds on sewage sludges, focusing agricultural use: Microbial characterization, respirometric assessment and toxicity reduction. WASTE MANAGEMENT (NEW YORK, N.Y.) 2020; 118:110-121. [PMID: 32892088 DOI: 10.1016/j.wasman.2020.08.033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 07/30/2020] [Accepted: 08/21/2020] [Indexed: 06/11/2023]
Abstract
Sewage sludge (SS) exhibits a relevant agronomic potential due to the high content of organic matter and nutrients. However, the presence of several toxic substances can prevent its agricultural application. This study evaluated if the incorporation of stimulating agents (coffee grounds and sugarcane bagasse) could contribute to an effective increase of the SS biodegradability in order to decrease its toxicity. The samples were prepared mixing aerobic or anaerobic sludge with soil, soil and bagasse, and soil and coffee grounds. Respirometric tests showed that stimulating agents enhanced the CO2 production. However, in terms of biodegradation efficiency, more satisfactory results were verified for the anaerobic SS, especially when mixed with coffee grounds. The biodegradation also favored the SS sanitization, eliminating the Enterobacteria. For baseline toxicity (Microtox with Aliivibrio fischeri) and phytotoxicity (Lactuca sativa), all the initial samples showed higher effects. Nevertheless, after the biodegradation, this toxicity was significantly decreased and the best results were obtained for the mixtures containing only soil and sludge. For the AREc32 assay (NRF2 mediated oxidative stress response), although a very weak response was observed, this effect was attenuated for the aerobic SS or completely eliminated for the anaerobic SS after the biodegradation. Thus, even though the use of biostimulation agents during the biodegradation led to an enhancement of microbial respiration, their incorporation to the samples do not seem to interfere in the decrease of the toxic potential of the studied SSs. However, the SS biodegradation in aerobiosis was crucial for toxicity reduction and to accelerate its maturity.
Collapse
Affiliation(s)
| | - Andrea Misovic
- Department Aquatic Ecotoxicology, Faculty of Biological Sciences, Goethe University Frankfurt am Main, Germany
| | - Flávio Andrade Oliveira
- Department of Clinical Pathology, Faculty of Medical Sciences, State University of Campinas - UNICAMP, Campinas, SP, Brazil
| | - Carlos Emílio Levy
- Department of Clinical Pathology, Faculty of Medical Sciences, State University of Campinas - UNICAMP, Campinas, SP, Brazil
| | - Jörg Oehlmann
- Department Aquatic Ecotoxicology, Faculty of Biological Sciences, Goethe University Frankfurt am Main, Germany
| | - Mary Rosa Rodrigues de Marchi
- Department of Analytical Chemistry, Institute of Chemistry, Universidade Estadual Paulista - UNESP, Araraquara, SP, Brazil
| |
Collapse
|
13
|
Mortula MM, Ahmed A, Fattah KP, Zannerni G, Shah SA, Sharaby AM. Sustainable Management of Organic Wastes in Sharjah, UAE through Co-Composting. Methods Protoc 2020; 3:mps3040076. [PMID: 33167569 PMCID: PMC7712295 DOI: 10.3390/mps3040076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 10/28/2020] [Accepted: 11/04/2020] [Indexed: 12/02/2022] Open
Abstract
Daily human activities and vast green areas produce substantial amounts of organic wastes that end up in landfills with minimal treatment. In addition to the problems associated with landfills, disposal through this method is unsustainable in the long run and does not allow recovering materials from the waste. This paper focuses on the co-composting of different organic wastes produced in The Emirate of Sharjah, United Arab Emirates (UAE), to optimize mixing proportions of three different kinds of wastes—sewage sludge (SS), green waste (GW), and food waste (FW). All three organic wastes were analyzed to determine their chemical composition and the mixing proportions. Ten different mixing proportions as a function of carbon:nitrogen (C:N ratios) were determined and mixed in a NatureMill composter. Compost samples were tested for pH, salinity, conductivity, moisture content, organic matter, organic carbon, phosphorus, total nitrogen, and final C:N ratio after 6 weeks. Results indicate that a period of 5–6 weeks is sufficient for the compost to stabilize. The varying mixing proportions produced a good-quality compost (C:N up to 20:1) with high nutrient content. The study reaffirms that co-composting can be a potential sustainable organic waste management option for the United Arab Emirates.
Collapse
Affiliation(s)
- Md Maruf Mortula
- Department of Civil Engineering, American University of Sharjah, Sharjah 26666, UAE; (M.M.M.); (A.A.); (G.Z.); (A.M.S.)
| | - Aqeel Ahmed
- Department of Civil Engineering, American University of Sharjah, Sharjah 26666, UAE; (M.M.M.); (A.A.); (G.Z.); (A.M.S.)
| | - Kazi Parvez Fattah
- Department of Civil Engineering, American University of Sharjah, Sharjah 26666, UAE; (M.M.M.); (A.A.); (G.Z.); (A.M.S.)
- Correspondence:
| | - Ghina Zannerni
- Department of Civil Engineering, American University of Sharjah, Sharjah 26666, UAE; (M.M.M.); (A.A.); (G.Z.); (A.M.S.)
| | - Syed A. Shah
- Compost Plant, Sharjah Municipality, Sharjah 26666, UAE;
| | - Ahmed M. Sharaby
- Department of Civil Engineering, American University of Sharjah, Sharjah 26666, UAE; (M.M.M.); (A.A.); (G.Z.); (A.M.S.)
| |
Collapse
|
14
|
Liu J, Jia S, Xu L, Zhu F, Ren S, Liu Y, Sun Z. Application of composite degradable modified starch-based flocculant on dewatering and recycling properties. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 82:2051-2061. [PMID: 33263583 DOI: 10.2166/wst.2020.464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Sludge dewatering is an important step for wastewater treatment. Composite degradable flocculant (CDF) was prepared by cationic polyacrylamide (PAM) grafting onto modified starch with a novel initiator, and characterized by Fourier transform infrared spectroscopy. The microstructure of flocculated sludge was characterized by scanning electron microscopy. The study investigated the properties of CDF compared to PAM, which showed that the prepared CDF exhibited a highly effective flocculation on sludge dewatering, a higher transmittance and chemical oxygen demand removal rate, and a lower value of effluent ammonia nitrogen and total phosphorus. The fermentation process was also analyzed by testing the performance of dewatered sludge (temperature, pH, ammonia nitrogen, E4/E6 (humic acid absorbance at 465 nm (E4) and 665 nm (E6))). The dehydrated sludge with CDF could be easily compressed into cakes by belt-filter for easy transportation and storage. With the continuous addition of CDF and PAM, the corresponding index of capillary suction time (CST) increased. Moreover, the total value of CST with CDF was low, showing a good dewaterability. In addition, the sludge index of pumping time and moisture content with CDF were low in contrast with PAM. Fermentation experiments demonstrated that sludge with CDF had a comparatively high temperature and low value of E4/E6. Such novel CDF shows enormous potential in wastewater treatment and sludge fermentation.
Collapse
Affiliation(s)
- Jianbo Liu
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Shibei District, Qingdao, China E-mail: ; Sinocore Biotechnology (Qingdao) Co., Ltd, 53# Zhengzhou Road, Qingdao, 266042, China
| | - Shouhao Jia
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Shibei District, Qingdao, China E-mail:
| | - Liming Xu
- Sinocore Biotechnology (Qingdao) Co., Ltd, 53# Zhengzhou Road, Qingdao, 266042, China
| | - Feifei Zhu
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Shibei District, Qingdao, China E-mail:
| | - Shan Ren
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Shibei District, Qingdao, China E-mail:
| | - Yuanfeng Liu
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Shibei District, Qingdao, China E-mail:
| | - Ziqi Sun
- Sinocore Biotechnology (Qingdao) Co., Ltd, 53# Zhengzhou Road, Qingdao, 266042, China
| |
Collapse
|
15
|
Comber SDW, Gardner MJ, Constantino C, Firth S, Hargreaves A, Davies R. Modelling scenarios of environmental recovery after implementation of controls on emissions of persistent organic pollutants. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2020; 22:1865-1876. [PMID: 32794543 DOI: 10.1039/d0em00137f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Comparison of monitoring data with toxicologically-derived environmental quality standards (EQSs) forms the basis of assessments of the quality status of the water environment. Having established the status quo, the logical next step is to address instances of non-compliance with EQSs by applying remedial measures, including reducing the use or at least the emission of the substances of concern or by taking steps to reduce concentrations already present using technological solutions such as enhanced wastewater treatment. The selection of suitable remedial measures must be a compromise between cost, likely effectiveness and the timescale over which improvements might be acceptable. The decision on overall environmental management has also to take into account the need for demonstrable progress; this might mean that it is preferable to address some more readily achievable goal rather than to attempt to solve a more serious, but ultimately intractable problem. This paper describes the development and application of a generic modelling tool that provides a way of assessing the potential requirements for remedial actions and their likely outcomes over a timescale of up to forty years taking account of sediment partitioning, environmental degradation and biological accumulation. The tool was validated using a detailed UK wastewater treatment works effluent discharge dataset. Examples involving several chemicals that are of current concern are provided. Some substances (e.g. tributyltin, PFOS) are identified as likely to meet EQS values in sediments or biota in a relatively short timescale; others (PAHs, DEHP) appear to represent more intractable problems.
Collapse
Affiliation(s)
- S D W Comber
- Plymouth University, B531, Portland Square, Drake Circus, Plymouth, Devon, PL4 8AA UK.
| | - M J Gardner
- Oasis Business Park, Eynsham, Oxford OX29 4AH, UK
| | | | - S Firth
- Oasis Business Park, Eynsham, Oxford OX29 4AH, UK
| | - A Hargreaves
- Oasis Business Park, Eynsham, Oxford OX29 4AH, UK
| | - R Davies
- Oasis Business Park, Eynsham, Oxford OX29 4AH, UK
| |
Collapse
|
16
|
Major N, Schierstaedt J, Jechalke S, Nesme J, Ban SG, Černe M, Sørensen SJ, Ban D, Schikora A. Composted Sewage Sludge Influences the Microbiome and Persistence of Human Pathogens in Soil. Microorganisms 2020; 8:microorganisms8071020. [PMID: 32660164 PMCID: PMC7409118 DOI: 10.3390/microorganisms8071020] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 07/06/2020] [Accepted: 07/07/2020] [Indexed: 12/03/2022] Open
Abstract
Composted sewage sludge (CSS) gained attention as a potential fertilizer in agriculture. Application of CSS increases soil microbial activity and microbial biomass, however, it can also lead to increased chemical and microbiological risks. In this study, we performed microcosm experiments to assess how CSS reshapes the microbial community of diluvial sand (DS) soil. Further, we assessed the potential of CSS to increase the persistence of human pathogens in DS soil and the colonization of Chinese cabbage (Brassica rapa L. subsp. pekinensis (Lour.) Hanelt). The results revealed that CSS substantially altered the prokaryotic community composition. Moreover, addition of CSS increased the persistence of Salmonella enterica serovar Typhimurium strain 14028s and S.enterica serovar Senftenberg in DS soil. However, the enhanced persistence in soil had no impact on the colonization rate of B.rapa grown on soil inoculated with Salmonella. We detected Salmonella in leaves of 1.9% to 3.6% of plants. Addition of CSS had no impact on the plant colonization rate. The use of sewage sludge composts is an interesting option. However, safety measures should be applied in order to avoid contamination of crop plants by human pathogens.
Collapse
Affiliation(s)
- Nikola Major
- Institute of Agriculture and Tourism, Karla Huguesa 8, 52440 Poreč, Croatia; (S.G.B.); (M.Č.); (D.B.)
- Correspondence: (N.M.); (A.S.)
| | - Jasper Schierstaedt
- Leibniz Institute of Vegetable and Ornamental Crops, Department Plant-Microbe Systems, Theodor-Echtermeyer-Weg 1, 14979 Großbeeren, Germany;
| | - Sven Jechalke
- Institute for Phytopathology, Centre for BioSystems, Land Use and Nutrition, Justus Liebig University Giessen, Heinrich-Buff-Ring 26, 35392 Giessen, Germany;
| | - Joseph Nesme
- Section of Microbiology, University of Copenhagen, Universitetsparken 15, 2100 Copenhagen, Denmark; (J.N.); (S.J.S.)
| | - Smiljana Goreta Ban
- Institute of Agriculture and Tourism, Karla Huguesa 8, 52440 Poreč, Croatia; (S.G.B.); (M.Č.); (D.B.)
| | - Marko Černe
- Institute of Agriculture and Tourism, Karla Huguesa 8, 52440 Poreč, Croatia; (S.G.B.); (M.Č.); (D.B.)
| | - Søren J. Sørensen
- Section of Microbiology, University of Copenhagen, Universitetsparken 15, 2100 Copenhagen, Denmark; (J.N.); (S.J.S.)
| | - Dean Ban
- Institute of Agriculture and Tourism, Karla Huguesa 8, 52440 Poreč, Croatia; (S.G.B.); (M.Č.); (D.B.)
| | - Adam Schikora
- Julius Kühn-Institut, Federal Research Centre for Cultivated Plants, Institute for Epidemiology and Pathogen Diagnostics, Messeweg 11/12, 38104 Braunschweig, Germany
- Correspondence: (N.M.); (A.S.)
| |
Collapse
|
17
|
Voběrková S, Maxianová A, Schlosserová N, Adamcová D, Vršanská M, Richtera L, Gagić M, Zloch J, Vaverková MD. Food waste composting - Is it really so simple as stated in scientific literature? - A case study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 723:138202. [PMID: 32224413 DOI: 10.1016/j.scitotenv.2020.138202] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/23/2020] [Accepted: 03/23/2020] [Indexed: 06/10/2023]
Abstract
Food waste has recently gained much worldwide interest due to its influence on the environment, economy and society. Gathering and recycling of food waste is the essential issue in the waste management and the interest in processing food waste arises mainly out of influence of the processes of food putrefaction on the environment. Composting of food waste encounters a number of technical challenges, arising weak physical structure of food waste with weak porosity, high content of water, low carbon-to-nitrogen relation and fast hydrolysis and accumulation of organic acids during composting. Therefore, the aim of this study was to investigate the challenges facing installations intended for food waste composting, with the purpose to their optimization with use of appropriate additives. Physico-chemical, biochemical characteristics and phytotoxicity of the produced compost has been measured. Two additives (20% biochar and 20% sawdust) were chosen from experimental variants I-XII containing different additives (biochar, Devonian sand, sawdust) in diverse concentration. The use of selected additives seems to slightly increase potential of hydrogen value and carbon-to-nitrogen ratio, while decreasing electrical conductivity in comparison with control sample. The results obtained also show that the addition of biochar leads to an increase dehydrogenase, phosphatase and arylsulphatase activities and addition of sawdust has a positive effect on beta-D-glucosidase, protease, phosphatase and arylsulphatase activities. The phytotoxicity test shows that the compost made of food waste (control sample) and with addition of biochar is toxic to plants. By contrast, the addition of sawdust shows that the compost was not phytotoxic. In conclusion, the addition of additives does not provide unambiguous results in terms of the quality of the final product in all monitored parameters. Therefore, we can state that food waste was reduced and hygienized, and that the final product does not meet conditions for mature compost.
Collapse
Affiliation(s)
- Stanislava Voběrková
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic; Central European Institute of Technology, Mendel University in Brno, Zemědělská 1, 61300 Brno, Czech Republic
| | - Alžbeta Maxianová
- Department of Applied and Landscape Ecology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
| | - Nikola Schlosserová
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
| | - Dana Adamcová
- Department of Applied and Landscape Ecology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
| | - Martina Vršanská
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic; Central European Institute of Technology, Mendel University in Brno, Zemědělská 1, 61300 Brno, Czech Republic
| | - Lukáš Richtera
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic; Central European Institute of Technology, Mendel University in Brno, Zemědělská 1, 61300 Brno, Czech Republic
| | - Milica Gagić
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic; Central European Institute of Technology, Mendel University in Brno, Zemědělská 1, 61300 Brno, Czech Republic
| | - Jan Zloch
- Department of Applied and Landscape Ecology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
| | - Magdalena Daria Vaverková
- Department of Applied and Landscape Ecology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic; Institute of Civil Engineering, Warsaw University of Life Sciences - SGGW, Nowoursynowska 159, 02 776 Warsaw, Poland.
| |
Collapse
|
18
|
Samara E, Matsi T, Zdragas A, Barbayiannis N. Use of clay minerals for sewage sludge stabilization and a preliminary assessment of the treated sludge's fertilization capacity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:35387-35398. [PMID: 31020523 DOI: 10.1007/s11356-019-05132-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 04/08/2019] [Indexed: 06/09/2023]
Abstract
Preserving sewage sludge's N is important for its agronomic use and this could possibly be achieved by treating sludge with certain clay minerals. Nine clay minerals and additionally Ca(OH)2 were added to dewatered sewage sludge at 0-30 % rates (wet weight basis) (treatments). After 70 days of equilibration, all mixtures were analyzed for certain properties and the mineral-sludge mixtures which showed the highest microbial load reduction were further assayed, along with the limed and untreated sludge. From all minerals' treatments, the fecal indicators of sludge treated with 30% of two bentonites, attapulgite, saponite-attapulgite, and zeolite decreased considerably compared to the control. These treatments were performed also well regarding sludge's retention capacity of available inorganic N, with the attapulgite and zeolite treatments containing the significantly highest amounts of NO3-N and NH4-N, respectively. For the water-soluble inorganic N, similar results were obtained for the zeolite treatment, whereas the treatments with the two bentonites had the significantly highest NO3-N content. Also, considerable amounts of water-soluble P were obtained in all cases of the treated sludge with minerals. Limed sludge had the lowest content of the water-soluble inorganic N and P. As far as the micronutrients are concerned, only Zn and B were detectable in the water-soluble fraction of all five minerals' treatments. The heavy metals, which regulate sludge's agronomic use, were far below the respective permissible limits and lower than the untreated sludge, except for Ni and Cr in the attapulgite and saponite-attapulgite treatments. In conclusion, certain clay minerals, i.e., bentonite, attapulgite, mixed clay of saponite and attapulgite, and zeolite, seem promising materials for the stabilization of sewage sludge in the perspective of using them as a fertilizer. In addition, they seem to have higher fertilizing value than limed sludge. However, environmental (in respect of Ni and Cr) and agricultural (in respect of Zn and B) impacts must be considered.
Collapse
Affiliation(s)
- Eftihia Samara
- Soil Science Laboratory, Faculty of Agriculture, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.
| | - Theodora Matsi
- Soil Science Laboratory, Faculty of Agriculture, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Antonios Zdragas
- Veterinary Research Institute, National Agricultural Research Foundation, 57001, Thermi, Greece
| | - Nick Barbayiannis
- Soil Science Laboratory, Faculty of Agriculture, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| |
Collapse
|
19
|
Miranda M, Méndez L, Pereira V, Minervino AHH, López-Alonso M. Iron loading and secondary multi-trace element deficiency in a dairy herd fed silage grass grown on land fertilized with sewage sludge. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:36978-36984. [PMID: 31745788 DOI: 10.1007/s11356-019-06828-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 10/21/2019] [Indexed: 06/10/2023]
Abstract
Recycling sewage sludge by applying it to agricultural land is strategically important in the European Union and is regulated by Directive 86/278/EEC, aimed at protecting the soil and humans from the presence of unwanted substances. However, because of the ruminant feeding habits, there is a risk that animals grazed on pasture or fed crops grown on land treated in this way may ingest biosolids adhered to foliage and/or on the top soil. This paper describes an episode of toxicity in a dairy herd consuming silage from a field fertilized with sewage sludge produced in a wastewater treatment plant. The affected cows were recumbent, unable to rise and suffered diarrhoea. Analysis of tissues (fresh weight) from a cow that subsequently died revealed severe hepatic iron loading (6720 mg/kg) and secondary multi-trace element hepatic deficiency, particularly of copper (0.812 mg/kg) and manganese (0.436 mg/kg), but also selenium (0.164 mg/kg) and zinc (19.9 mg/kg). The study findings indicate that the use of sewage sludge in agriculture can cause secondary multi-trace element deficiencies in ruminants. Careful attention should be taken when crops are ensilaged avoiding top-soil sewage sludge contamination, since the acidification process may greatly increase Fe bioavailability.
Collapse
Affiliation(s)
- Marta Miranda
- Department of Anatomy, Animal Production and Clinical Veterinary Sciences, Faculty of Veterinary Medicine, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| | - Luisa Méndez
- Department of Animal Pathology, Faculty of Veterinary Medicine, Universidade de Santiago de Compostela, 27002, Lugo, Spain
- AIRA SCG, Ctra. Cartelos s/n. 27527 Carballedo, Lugo, Spain
| | - Víctor Pereira
- Department of Animal Pathology, Faculty of Veterinary Medicine, Universidade de Santiago de Compostela, 27002, Lugo, Spain.
| | - Antonio Humberto Hamad Minervino
- Laboratory of Animal Health, LARSANA, Federal University of Western Pará, UFOPA, Vera Paz Street, s/n, Santarém, Pará, CEP 68100-000, Brazil.
| | - Marta López-Alonso
- Department of Animal Pathology, Faculty of Veterinary Medicine, Universidade de Santiago de Compostela, 27002, Lugo, Spain
| |
Collapse
|