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Tie HO, Che Man H, Koyama M, Syukri F, Md Yusoff F, Toda T, Nakasaki K, Mohamed Ramli N. Integrated nutrient recycling: Ammonia recovery from thermophilic composting of shrimp aquaculture sludge via self-heated bench-scale reactor and mango plant growth enhancement by the compost. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 180:55-66. [PMID: 38520898 DOI: 10.1016/j.wasman.2024.03.021] [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: 12/18/2023] [Revised: 03/11/2024] [Accepted: 03/13/2024] [Indexed: 03/25/2024]
Abstract
Due to the rapid growth of the aquaculture industry, large amounts of organic waste are released into nature and polluted the environment. Traditional organic waste treatment such as composting is a time-consuming process that retains the ammonia (NH3) in the compost, and the compost produced has little economic value as organic fertilizer. Illegal direct discharge into the environment is therefore widespread. This study investigates the recovery of NH3 through thermophilic composting of shrimp aquaculture sludge (SAS) and its application as a soil conditioner for the growth of mango plants. A maximum composting temperature of 57.10 °C was achieved through self-heating in a 200 L bench-scale reactor, resulting in NH3 recovery of 224.04 mol/ton-ds after 14 days. The addition of calcium hydroxide and increased aeration have been shown to increase NH3 volatilization. The recovered NH3 up to 3 kg-N can be used as a source of clean nitrogen for high-value microalgae cultivation, with a theoretical yield of up to 34.85 kg-algae of microalgae biomass from 1 ton-ds of SAS composting. Despite the high salinity, SAS compost improved mango plant growth and disease resistance. These results highlight the potential of SAS compost as a sustainable source of clean nitrogen for microalgae cultivation and soil conditioner, contributing to a waste-free circular economy through nutrient recycling and sustainable agriculture.
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Affiliation(s)
- Hieng Ong Tie
- SMART Farming Technology Research Centre (SFTRC), Department of Biological and Agricultural Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; School of Environment and Society, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Hasfalina Che Man
- SMART Farming Technology Research Centre (SFTRC), Department of Biological and Agricultural Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; The International Institute of Aquaculture and Aquatic Sciences (I-AQUAS), Universiti Putra Malaysia, 71050 Port Dickson, Negeri Sembilan, Malaysia.
| | - Mitsuhiko Koyama
- School of Environment and Society, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Fadhil Syukri
- Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; The International Institute of Aquaculture and Aquatic Sciences (I-AQUAS), Universiti Putra Malaysia, 71050 Port Dickson, Negeri Sembilan, Malaysia
| | - Fatimah Md Yusoff
- Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; The International Institute of Aquaculture and Aquatic Sciences (I-AQUAS), Universiti Putra Malaysia, 71050 Port Dickson, Negeri Sembilan, Malaysia
| | - Tatsuki Toda
- Faculty of Science and Engineering, Soka University, 1-236 Tangi-machi, Tokyo 192-8577, Japan
| | - Kiyohiko Nakasaki
- School of Environment and Society, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Norulhuda Mohamed Ramli
- SMART Farming Technology Research Centre (SFTRC), Department of Biological and Agricultural Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; The International Institute of Aquaculture and Aquatic Sciences (I-AQUAS), Universiti Putra Malaysia, 71050 Port Dickson, Negeri Sembilan, Malaysia
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Nguyen TP, Koyama M, Nakasaki K. Effect of oxygen deficiency on organic matter decomposition during the early stage of composting. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 160:43-50. [PMID: 36780820 DOI: 10.1016/j.wasman.2023.01.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 01/25/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
This study aimed to elucidate the recovery of organic matter decomposition after oxygen deficiency in the early stage was replaced by aerobic conditions during composting. Oxygen deficiency at the early stage was created by supplying nitrogen gas into the composting for 3 days (LN3dA) and 5 days (LN5dA). Subsequently, air was introduced until the end of composting instead of nitrogen gas. Runs LN3dA and LN5dA had lower organic matter decomposition by 10% and 19%, respectively, compared with fully aerobic composting (LA) after oxygen deficiency was changed to aerobic conditions. Compared with fully aerobic composting, composting with oxygen deficiency at the early thermophilic stage had a different bacterial community, as analyzed by high-throughput sequencing. During vigorous organic matter decomposition, Bacillus was dominant in Run LA, whereas Caldibacillus proliferated in Runs LN3dA and LN5dA. Bacillus thermoamylovorans, Bacillus arbutinivorans, and Bacillus kokeshiiformis were hypothesized to be inhibited by Caldibacillus. Moreover, dissimilarity analysis indicated that different bacterial communities remained until the end of composting, which could be a reason for the incomplete recovery of organic matter decomposition. As analyzed by the API-ZYM kit, the enzymatic activities were also different between all composting runs. One of the characterized enzymes, α-galactosidase, displayed low activity during oxygen deficiency and could not achieve high activity with sufficient oxygen until composting was completed. Overall, our study showed that oxygen deficiency at the early thermophilic stage caused incomplete recovery of organic matter decomposition.
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Affiliation(s)
- Thien-Phuc Nguyen
- School of Environment and Society, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Mitsuhiko Koyama
- School of Environment and Society, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Kiyohiko Nakasaki
- School of Environment and Society, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
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Nguyen TP, Koyama M, Nakasaki K. Effects of oxygen supply rate on organic matter decomposition and microbial communities during composting in a controlled lab-scale composting system. WASTE MANAGEMENT (NEW YORK, N.Y.) 2022; 153:275-282. [PMID: 36150273 DOI: 10.1016/j.wasman.2022.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 09/02/2022] [Accepted: 09/06/2022] [Indexed: 06/16/2023]
Abstract
The study aimed to elucidate the effect of oxygen supply rate (OSR) on the composting of model organic waste independently from other factors by using a controlled laboratory-scale reactor system. Four OSRs, 96.2, 24.2, 13.7, and 3.45 mL-O2/min/kg-WS (wet solid), were tested. The delay of organic matter degradation was observed temporarily in the early stage of composting with 13.7 mL-O2/min/kg-WS and severe oxygen deficiency was observed in lower OSR, indicating that the critical OSR existed around this value. Composting with 3.45 mL-O2/min/kg-WS resulted in constantly low CO2 evolution rate and remarkably low degree of organic matter degradation. Under deficient oxygen, all enzymes measured, such as phosphatases, esterases, lipases, proteases, and sugar degrading enzymes, showed lower activities. High-throughput sequencing revealed Caldibacillus and Ureibacillus became dominant in the later stages of the oxygen deficiency composting, while Geobacillus was the most dominant microorganism throughout composting with OSR higher than 13.7 mL-O2/min/kg-WS.
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Affiliation(s)
- Thien-Phuc Nguyen
- School of Environment and Society, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Mitsuhiko Koyama
- School of Environment and Society, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Kiyohiko Nakasaki
- School of Environment and Society, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
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Manga M, Evans BE, Ngasala TM, Camargo-Valero MA. Recycling of Faecal Sludge: Nitrogen, Carbon and Organic Matter Transformation during Co-Composting of Faecal Sludge with Different Bulking Agents. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:10592. [PMID: 36078309 PMCID: PMC9518209 DOI: 10.3390/ijerph191710592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
This study investigated the effect of locally available bulking agents on the faecal sludge (FS) composting process and quality of the final FS compost. Dewatered FS was mixed with sawdust, coffee husk and brewery waste, and composted on a pilot scale. The evolution of physical and chemical characteristics of the composting materials was monitored weekly. Results indicate that bulking agents have a statistically significant effect (p < 0.0001) on the evolution of composting temperatures, pH, electrical conductivity, nitrogen forms, organic matter mineralisation, total organic carbon, maturity indices, quality of the final compost and composting periods during FS composting. Our results suggest reliable maturity indices for mature and stable FS compost. From the resource recovery perspective, this study suggests sawdust as a suitable bulking agent for co-composting with FS-as it significantly reduced the organic matter losses and nitrogen losses (to 2.2%), and improved the plant growth index, thus improving the agronomic values of the final compost as a soil conditioner. FS co-composting can be considered a sustainable and decentralised treatment option for FS and other organic wastes in the rural and peri-urban communities, especially, where there is a strong practice of reusing organic waste in agriculture.
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Affiliation(s)
- Musa Manga
- The Water Institute at UNC, Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 357 Rosenau Hall, 135 Dauer Drive, Chapel Hill, NC 27599, USA
- BioResource Systems Research Group, School of Civil Engineering, University of Leeds, Leeds LS2 9JT, UK
- Department of Construction Economics and Management, College of Engineering, Design, Art and Technology (CEDAT), Makerere University, Kampala P.O. Box 7062, Uganda
| | - Barbara E. Evans
- BioResource Systems Research Group, School of Civil Engineering, University of Leeds, Leeds LS2 9JT, UK
| | - Tula M. Ngasala
- Department of Civil and Environmental Engineering, Michigan State University, East Lansing, MI 48823, USA
| | - Miller A. Camargo-Valero
- BioResource Systems Research Group, School of Civil Engineering, University of Leeds, Leeds LS2 9JT, UK
- Departamento de Ingeniería Química, Universidad Nacional de Colombia, Campus La Nubia, Manizales 170003, Colombia
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Effect of hydrothermal treatment on organic matter degradation, phytotoxicity, and microbial communities in model food waste composting. J Biosci Bioeng 2022; 133:382-389. [PMID: 35115228 DOI: 10.1016/j.jbiosc.2022.01.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 01/11/2022] [Accepted: 01/11/2022] [Indexed: 01/17/2023]
Abstract
Hydrothermal treatment (HTT) as a pretreatment method for compost raw material has multiple benefits such as enhanced solubility of organic material, improved bioaugmentation, and reduced biohazard by killing harmful microorganisms. In this study, we pretreated food waste via HTT at 180 °C for 30 min to investigate its effect on food waste composting. HTT generated 8.98 mg/g-dry solid (g-ds) of 5-hydroxymethylfurfural and 4.32 mg/g-ds furfural. These furan compounds were completely decomposed in the early stage of composting, subsequently the organic matter in the food waste started to be degraded. The HTT-pretreated experiment demonstrated less organic matter degradation during composting as well as lower compost phytotoxicity compared to the non-HTT-pretreated experiment, where the conversion of carbon was 25.2% and the germination index value was 55%. HTT probably denatured part of the organic matter and making it more difficult to decompose, thereby preventing the rapid release of high concentrations of phytotoxic compounds such as organic acids and ammonium ions during composting. High-throughput microbial community analysis revealed that only Firmicutes appeared in the HTT-pretreated experiment, however, other bacterial groups also appeared in the non-HTT-pretreated experiment. This was possibly influenced by furan compounds and the changes of easily degradable organic matter to hardly degradable. Bacillus and Lysinibacillus were dominant in both composting experiments during vigorous organic matter degradation, suggesting that these bacterial groups were the main contributors to food waste composting. This study suggests that HTT is advantageous for the pretreatment of easily degradable food waste, as compost with less phytotoxicity was produced.
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Effects of Partial Blackwater Substitution on Soil Potential NI-Trogen Leaching in a Summer Maize Field on the North China Plain. Life (Basel) 2021; 12:life12010053. [PMID: 35054446 PMCID: PMC8777822 DOI: 10.3390/life12010053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 12/29/2021] [Accepted: 12/29/2021] [Indexed: 11/17/2022] Open
Abstract
In China, promoting harmless blackwater treatment and resource utilization in rural areas is a priority of the “toilet revolution”. Exploring the effects of blackwater application in arid areas on soil nitrogen losses can provide a basis for more effective water and fertilizer management. This study analyzed nitrogen leaching and maize yield under blackwater application in the summer maize season of 2020. A total of 5 treatments were used: no fertilizer, single chemical fertilizer application (CF), single blackwater application (HH), and combined chemical fertilizer and blackwater application ratios of 1:1 (CH1) and 2:1 (CH2). The total nitrogen leached from the fertilization treatments was 53.14–60.95 kg·ha−1 and the leached nitrate nitrogen was 34.10–40.62 kg·ha−1. Nitrate nitrogen accounted for 50–62% of the total leached nitrogen. Compared with blackwater treatments, nitrate nitrogen moved into deeper soil layers (80–100 cm depth) during the CF treatment. Compared with CF, HH significantly reduced the maize yield by 24.39%. The nitrogen surplus of HH was higher than that of other fertilizer treatments. Considering nitrogen leaching, maize yield, and economic benefits, the CH2 treatment presented the optimal results. These findings address knowledge gaps and assist in guiding policy-makers to effectively promote China’s “toilet revolution”.
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Fate of faecal pathogen indicators during faecal sludge composting with different bulking agents in tropical climate. Int J Hyg Environ Health 2020; 232:113670. [PMID: 33310349 DOI: 10.1016/j.ijheh.2020.113670] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 09/13/2020] [Accepted: 11/24/2020] [Indexed: 11/20/2022]
Abstract
In recent years, composting has increasingly been promoted as a reliable method for sanitizing Faecal Sludge (FS) from onsite sanitation systems, particularly where there are opportunities to use the recovered nutrients in agriculture. However, there remain gaps in our understanding of the fate of infectious faecal pathogens during composting, particularly in tropical climates. This study investigated the influence of different locally available bulking agents on the inactivation efficiency of composting by tracking the fate of four key indicator organisms (E. coli, Salmonella spp., Enterococci spp., and viable helminth eggs). Dewatered FS was mixed with different bulking agents - i.e. Sawdust (SD), Coffee husks (CH) and Brewery waste (BW). Compost piles of FS:SD, FS:CH, and FS:BW in a volumetric ratio of 1:2 were set-up in duplicate (3 m3 each), composted on a pilot scale and monitored weekly for the survival of pathogen indicators for a period of 15 weeks. The study findings suggest that the different bulking agents have a statistically significant (p < 0.05) effect on the temperature evolution and survival of pathogen indicators in compost. CH was the most suitable bulking agent for composting with FS as piles containing CH exhibited higher pathogen inactivation efficiency and shorter inactivation periods of 6 weeks compared to 8 weeks for SD and BW piles. Time-temperature was the most important factor responsible for pathogen inactivation. However, other mechanisms such as indigenous microbial and toxic by-products such as NH4+-N also played an important role in the inactivation of pathogens. The results suggest that co-composting of FS with a sawdust, coffee husk or brewery waste for 8 weeks with thermophilic temperatures of about 48-60 °C sustained in the composting piles for more than 38 days, using 7 days turning frequency, is sufficient to ensure complete sanitization of FS before reuse in agriculture.
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Wang K, Li W, Li X, Ren N. Spatial nitrifications of microbial processes during composting of swine, cow and chicken manure. Sci Rep 2015; 5:14932. [PMID: 26442637 PMCID: PMC4595641 DOI: 10.1038/srep14932] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 09/11/2015] [Indexed: 11/09/2022] Open
Abstract
Composting is a widely-used method to recycle the nutrients in livestock manure for agriculture. The spatial stratifications of microbial processes inside the manure particle that determine organic and nitrogen transformation are virtually unclear. Here, we show the evolution of the interior microenvironment of swine, cow and chicken manure by using microelectrodes during forced-aeration composting. Composting has generally been regarded as an aerobic bioprocess, however, the long-existing of a large anoxic zone inside these manures was confirmed during the active phase in this study. The profile of the oxidation-reduction potential dramatically decreased first and then gradually increased. The spatial difference in the ammonia concentration was not significant, but nitrate concentration continuously decreased with depth. The anoxic condition within the manure particle was demonstrated to be a primary cause of the severe ammonia emission and the long composting period. These founding provided a new insight toward "aerobic" composting process and a sound foundation for the development of efficient composting technology.
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Affiliation(s)
- Ke Wang
- School of Municipal and Environmental Engineering, State Key Laboratory of Urban Water Resource and Environment (SKLUWER), Harbin Institute of Technology, 73 Huanghe road, Harbin, Heilongjiang 150090, China
| | - Weiguang Li
- School of Municipal and Environmental Engineering, State Key Laboratory of Urban Water Resource and Environment (SKLUWER), Harbin Institute of Technology, 73 Huanghe road, Harbin, Heilongjiang 150090, China
| | - Xiangkun Li
- School of Municipal and Environmental Engineering, State Key Laboratory of Urban Water Resource and Environment (SKLUWER), Harbin Institute of Technology, 73 Huanghe road, Harbin, Heilongjiang 150090, China
| | - Nanqi Ren
- School of Municipal and Environmental Engineering, State Key Laboratory of Urban Water Resource and Environment (SKLUWER), Harbin Institute of Technology, 73 Huanghe road, Harbin, Heilongjiang 150090, China
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Nakasaki K, Mimoto H, Tran QNM, Oinuma A. Composting of food waste subjected to hydrothermal pretreatment and inoculated with Paecilomyces sp. FA13. BIORESOURCE TECHNOLOGY 2015; 180:40-46. [PMID: 25585259 DOI: 10.1016/j.biortech.2014.12.094] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 12/23/2014] [Accepted: 12/28/2014] [Indexed: 06/04/2023]
Abstract
Food waste collected from restaurants, convenience stores, and food-processing factories was mixed with sawdust and subjected to hydrothermal pretreatment at 180°C for 30min to prepare compost raw material. Furan compounds such as 5-HMF (5-hydroxymethyl furfural) and furfural were produced at concentration levels of approximately 8 and 0.5mg/g-ds, respectively, through hydrothermal pretreatment. The furan compounds inhibited the activity of composting microorganisms, thus delaying the start of organic matter degradation during composting. A newly identified fungus, Paecilomyces sp. FA13, which possesses the ability to degrade furan compounds, was isolated and used as an inoculum for the composting of the raw material prepared by hydrothermal pretreatment. By inoculating the FA13 into the compost raw material at 10(5)CFU/g-ds, the degradation of furan compounds was accelerated. As a result, bacterial activity, which contributed to composting, was enhanced, significantly promoting the start of vigorous degradation of organic materials.
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Affiliation(s)
- Kiyohiko Nakasaki
- Department of International Development Engineering, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-Ku, Tokyo 152-8550, Japan.
| | - Hiroshi Mimoto
- Department of International Development Engineering, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-Ku, Tokyo 152-8550, Japan
| | - Quyen Ngoc Minh Tran
- Department of International Development Engineering, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-Ku, Tokyo 152-8550, Japan
| | - Akiko Oinuma
- Department of International Development Engineering, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-Ku, Tokyo 152-8550, Japan
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Kuok F, Mimoto H, Nakasaki K. Effects of turning on the microbial consortia and the in situ temperature preferences of microorganisms in a laboratory-scale swine manure composting. BIORESOURCE TECHNOLOGY 2012; 116:421-427. [PMID: 22525266 DOI: 10.1016/j.biortech.2012.03.106] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2012] [Revised: 03/24/2012] [Accepted: 03/29/2012] [Indexed: 05/31/2023]
Abstract
The effects of turning on the microbial consortia during swine manure composting were investigated. To focus on microbial migration, two types of composting runs, with and without turning, were conducted. In both cases, the material was composted in three separate reactors set at 30, 50, and 70 °C. For the runs with turning, the material was removed from the reactors, pooled, mixed, and redistributed daily, whereas for those without turning, the compost was agitated inside the reactors. The microbial consortia were compared by PCR-DGGE for composting without turning at different temperatures; this revealed the temperature preferences of the microorganisms, in situ--i.e., whether they were mesophilic, thermotolerant, thermophilic, or microorganisms that could adapt to a wide range of temperatures. Moreover, most of these microorganisms, except for the enteric bacteria, survived stably during composting with turning, irrespective of the temperature, and the microbial consortia became similar across the three reactors.
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Affiliation(s)
- Fidero Kuok
- Department of International Development Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-Ku, Tokyo 152-8550, Japan
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