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Zhong HY, Wang H, Liu X, Liu C, Liu GY, Tian Y, Feng XM, Chen YH. Degradation and characteristic changes of organic matter in sewage sludge using Vermi-biofilter system. CHEMOSPHERE 2017; 180:57-64. [PMID: 28391153 DOI: 10.1016/j.chemosphere.2017.03.121] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 03/26/2017] [Accepted: 03/28/2017] [Indexed: 06/07/2023]
Abstract
Vermi-biofilter (VF) System could be an efficient sludge treatment unit in regard of rates and extents of total chemical oxygen demand (TCOD) removal, particularly the first 10 days earthworm-treated. This study characterized the organic matter in sludge before and after VF system treatment, with or without earthworm stage. The 60 days earthworm-treated VF system reached a TCOD removal of 10,450 mg/L, bulk DOC removal of 89.5 mg/L, and earthworm density increase from 32 g/L to 43 g/L in sludge EBOM in 60 days of VF system operation. The aromatic proteins, soluble microbial byproduct-like fluorescent compounds and carboxylic components, aliphatic components (C-H related), hydrocarbon and carbohydrate materials were identified to be principally increased by 10 days earthworm-treated and then degradation in the nest days under VF system.
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Affiliation(s)
- Hui-Yuan Zhong
- College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan, 063000, PR China.
| | - Hao Wang
- College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan, 063000, PR China
| | - Xiao Liu
- College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan, 063000, PR China
| | - Chang Liu
- South China Institute of Environmental Science. MEP, Guangzhou, 510000, PR China
| | - Guan-Yi Liu
- College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan, 063000, PR China
| | - Yang Tian
- College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan, 063000, PR China
| | - Xuan-Ming Feng
- College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan, 063000, PR China
| | - Yan-Hua Chen
- College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan, 063000, PR China
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Spiehs MJ, Berry ED, Wells JE, Parker DB, Brown-Brandl TM. Odorous Volatile Organic Compounds, Escherichia coli, and Nutrient Concentrations when Kiln-Dried Pine Chips and Corn Stover Bedding Are Used in Beef Bedded Manure Packs. JOURNAL OF ENVIRONMENTAL QUALITY 2017; 46:722-732. [PMID: 28783776 DOI: 10.2134/jeq2016.09.0333] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Pine ( spp.) bedding has been shown to lower the concentration of odorous volatile organic compounds (VOCs) and pathogenic bacteria compared with corn ( L.) stover bedding, but availability and cost limit the use of pine bedding in cattle confinement facilities. The objectives of this study were to determine if the addition of pine wood chips to laboratory-scaled bedded packs containing corn stover (i) reduced odorous VOC emissions; (ii) reduced total ; and (iii) changed the nutrient composition of the resulting manure-bedded packs. Bedding treatments included 0, 10, 20, 30, 40, 60, 80, and 100% pine chips, with the balance being corn stover. Four bedded packs for each mixture were maintained for 42 d ( = 4 observations per bedding material). The production of total sulfur compounds increased significantly when 100% pine chips were used (44.72 ng L) compared with bedding mixture containing corn stover (18.0-24.56 ng L). The carbon-to-nitrogen ratio exceeded the ideal ratio of 24:1 for the optimum activity of soil microorganisms when ≥60% pine chips (25.3-27.5 ng L) were included in the mixture. The use of 100% pine chips as bedding increased sulfide concentration in the facility 1.8 to 2.4 times over the use of corn stover bedding. was not influenced by the addition of pine chips to the corn stover bedding material but did decrease as the bedded pack aged. Bedding material mixtures containing 30 to 60% pine and 40 to 70% corn stover may be the ideal combination to mitigate odors from livestock facilities using deep bedded systems.
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Cestonaro T, Costa MSSDM, Costa LADM, Pereira DC, Rozatti MAT, Martins MFL. Addition of cattle manure to sheep bedding allows vermicomposting process and improves vermicompost quality. WASTE MANAGEMENT (NEW YORK, N.Y.) 2017; 61:165-170. [PMID: 28169054 DOI: 10.1016/j.wasman.2017.01.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 01/13/2017] [Accepted: 01/16/2017] [Indexed: 06/06/2023]
Abstract
Animal waste is usually a good substrate for vermicomposting. However, numerous animal husbandry systems use bedding that consists primarily of lignocellulosic substrates, which hinders earthworm and microorganism's development and thus, the entire bioconversion process. One possible solution is to mix the used bedding with other waste materials that are more amenable to earthworm ingestion and can provide better conditions for earthworm population growth. Here, we have aimed to examine the effectiveness of such procedure by mixing rice-husk-based sheep bedding with cattle manure in different proportions (0%, 25%, 50%, 75% and 100%). We have carried out vermicomposting experiments in benchtop vermireactors inoculated with 0.88kg of dry matter (sheep bedding+cattle manure). Data used in the Principal Component Analysis were the multiple vermicomposting variables (i.e., EC; pH; HA/FA and C/N ratios; P, K, cellulose, and hemicellulose content). The effect of the treatment on earthworm count was analyzed with ANOVA. We have observed that the addition of at least 25% of cattle manure to sheep bedding allows vermicomposting process but it is necessary 148days to obtain a stabilized vermicompost. However, increasing the proportion of cattle manure to sheep bedding, the vermicomposting time decreases proportionally to 94days. We concluded that vermicomposting can be considered a bioprocess to stabilize rice husk after being used as sheep bedding.
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Affiliation(s)
- Taiana Cestonaro
- Research Group on Water Resources and Environmental Sanitation - RHESA, Western Parana State University - UNIOESTE, Agricultural Engineering Graduate Program - PGEAGRI, Rua Universitária, 2069, Jardim Universitário, 85.819-110 Cascavel, Paraná, Brazil
| | - Mônica Sarolli Silva de Mendonça Costa
- Research Group on Water Resources and Environmental Sanitation - RHESA, Western Parana State University - UNIOESTE, Agricultural Engineering Graduate Program - PGEAGRI, Rua Universitária, 2069, Jardim Universitário, 85.819-110 Cascavel, Paraná, Brazil.
| | - Luiz Antonio de Mendonça Costa
- Research Group on Water Resources and Environmental Sanitation - RHESA, Western Parana State University - UNIOESTE, Agricultural Engineering Graduate Program - PGEAGRI, Rua Universitária, 2069, Jardim Universitário, 85.819-110 Cascavel, Paraná, Brazil
| | - Dercio Ceri Pereira
- Research Group on Water Resources and Environmental Sanitation - RHESA, Western Parana State University - UNIOESTE, Agricultural Engineering Graduate Program - PGEAGRI, Rua Universitária, 2069, Jardim Universitário, 85.819-110 Cascavel, Paraná, Brazil
| | - Marcos A T Rozatti
- Research Group on Water Resources and Environmental Sanitation - RHESA, Western Parana State University - UNIOESTE, Agricultural Engineering Graduate Program - PGEAGRI, Rua Universitária, 2069, Jardim Universitário, 85.819-110 Cascavel, Paraná, Brazil
| | - Marcos F Leal Martins
- Research Group on Water Resources and Environmental Sanitation - RHESA, Western Parana State University - UNIOESTE, Agricultural Engineering Graduate Program - PGEAGRI, Rua Universitária, 2069, Jardim Universitário, 85.819-110 Cascavel, Paraná, Brazil
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