The Experts below are selected from a list of 12117 Experts worldwide ranked by ideXlab platform
P V Nidheesh - One of the best experts on this subject based on the ideXlab platform.
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stabilized landfill Leachate Treatment using heterogeneous fenton and electro fenton processes
Chemosphere, 2018Co-Authors: T Sruthi, R Gandhimathi, S T Ramesh, P V NidheeshAbstract:In the present study, stabilized landfill Leachate Treatment by heterogeneous Fenton and electro-Fenton (EF) was carried out. Iron-manganese binary oxide loaded zeolite (IMZ) was used as a catalyst for generating hydroxyl radicals in the acidic medium. Heterogeneous Fenton process was capable of removing 88.6% COD from landfill Leachate at the optimal conditions, while 87.5% COD removal was observed at optimal EF Treatment conditions. Biodegradability of landfill Leachate was increased significantly from 0.03 to 0.52 after Fenton Treatment. The prepared heterogeneous catalyst was found reusable with a reduction in COD removal rate. Even though, both the processes are efficient for Leachate Treatment, the low catalyst dosage requirement in case of EF process justifies that it is more feasible than Fenton process.
T Sruthi - One of the best experts on this subject based on the ideXlab platform.
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stabilized landfill Leachate Treatment using heterogeneous fenton and electro fenton processes
Chemosphere, 2018Co-Authors: T Sruthi, R Gandhimathi, S T Ramesh, P V NidheeshAbstract:In the present study, stabilized landfill Leachate Treatment by heterogeneous Fenton and electro-Fenton (EF) was carried out. Iron-manganese binary oxide loaded zeolite (IMZ) was used as a catalyst for generating hydroxyl radicals in the acidic medium. Heterogeneous Fenton process was capable of removing 88.6% COD from landfill Leachate at the optimal conditions, while 87.5% COD removal was observed at optimal EF Treatment conditions. Biodegradability of landfill Leachate was increased significantly from 0.03 to 0.52 after Fenton Treatment. The prepared heterogeneous catalyst was found reusable with a reduction in COD removal rate. Even though, both the processes are efficient for Leachate Treatment, the low catalyst dosage requirement in case of EF process justifies that it is more feasible than Fenton process.
Zucong Cai - One of the best experts on this subject based on the ideXlab platform.
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Leachate Treatment in landfills is a significant N2O source
Science of The Total Environment, 2017Co-Authors: Xiaojun Wang, Mingsheng Jia, Chengliang Zhang, Shaohua Chen, Zucong CaiAbstract:Abstract The importance of methane (CH4) emissions from landfills has been extensively documented, while the nitrous oxide (N2O) emissions from landfills are considered negligible. In this study, three landfills were selected to measure CH4 and N2O emissions using the static chamber method. Dongbu (DB) and Dongfu (DF) landfills, both located in Xiamen city, Fujian Province, were classified as sanitary. The former started to receive solid waste from Xiamen city in 2009, and the latter was closed in 2009. Nanjing (NJ) landfill, located in Nanjing county, Fujian Province, was classified as managed. Results showed that for the landfill reservoirs, CH4 emissions were significant, while N2O emissions occurred mainly in operating areas (on average, 16.3 and 19.0 mg N2O m− 2 h− 1 for DB and NJ landfills, respectively) and made a negligible contribution to the total greenhouse gas emissions in term of CO2 equivalent. However, significant N2O emissions were observed in the Leachate Treatment systems of sanitary landfills and contributed 72.8% and 45.6% of total emissions in term of CO2 equivalent in DB and DF landfills, respectively. The N2O emission factor (EF) of the Leachate Treatment systems was in the range of 8.9–11.9% of the removed nitrogen. The total N2O emissions from the Leachate Treatment systems of landfills in Xiamen city were estimated to be as high as 8.55 g N2O-N capita− 1 yr− 1. These results indicated that N2O emissions from Leachate Treatment systems of sanitary landfills were not negligible and should be included in national and/or local inventories of greenhouse gas emissions.
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Leachate Treatment in landfills is a significant N2O source
Science of The Total Environment, 2017Co-Authors: Xiaojun Wang, Mingsheng Jia, Chengliang Zhang, Shaohua Chen, Zucong CaiAbstract:Abstract The importance of methane (CH4) emissions from landfills has been extensively documented, while the nitrous oxide (N2O) emissions from landfills are considered negligible. In this study, three landfills were selected to measure CH4 and N2O emissions using the static chamber method. Dongbu (DB) and Dongfu (DF) landfills, both located in Xiamen city, Fujian Province, were classified as sanitary. The former started to receive solid waste from Xiamen city in 2009, and the latter was closed in 2009. Nanjing (NJ) landfill, located in Nanjing county, Fujian Province, was classified as managed. Results showed that for the landfill reservoirs, CH4 emissions were significant, while N2O emissions occurred mainly in operating areas (on average, 16.3 and 19.0 mg N2O m− 2 h− 1 for DB and NJ landfills, respectively) and made a negligible contribution to the total greenhouse gas emissions in term of CO2 equivalent. However, significant N2O emissions were observed in the Leachate Treatment systems of sanitary landfills and contributed 72.8% and 45.6% of total emissions in term of CO2 equivalent in DB and DF landfills, respectively. The N2O emission factor (EF) of the Leachate Treatment systems was in the range of 8.9–11.9% of the removed nitrogen. The total N2O emissions from the Leachate Treatment systems of landfills in Xiamen city were estimated to be as high as 8.55 g N2O-N capita− 1 yr− 1. These results indicated that N2O emissions from Leachate Treatment systems of sanitary landfills were not negligible and should be included in national and/or local inventories of greenhouse gas emissions.
Stijn Van Hulle - One of the best experts on this subject based on the ideXlab platform.
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the present status of landfill Leachate Treatment and its development trend from a technological point of view
Reviews in Environmental Science and Bio\ technology, 2015Co-Authors: Violet Oloibiri, Michael Chys, Wim Audenaert, Bjorge Decostere, Yanling He, Herman Van Langenhove, Kristof Demeestere, Stijn Van HulleAbstract:More and more stringent requirements for pollution control and the implementation of the new discharge standard for landfill Leachate make the development and application of landfill Leachate Treatment a research focus. The aim of the review is to determine appropriate technique for effective Treatment of landfill Leachate. In the paper, various Leachate Treatment technologies are presented and summarized, the key control parameters and some main problems are discussed from a technological point of view. It is proposed that the improvement of existing technical and the development and industrial application of a new Treatment for landfill Leachate are necessary. The development and application of integrated Leachate Treatment process of different physical, biological and chemical technologies could be a suitable option to reduce the contamination levels of Leachate. Particularly, advanced oxidation technologies and an efficient integration between physical–chemical processes and biochemical processes are indicated as a significant research direction of new technology development.
R Gandhimathi - One of the best experts on this subject based on the ideXlab platform.
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stabilized landfill Leachate Treatment using heterogeneous fenton and electro fenton processes
Chemosphere, 2018Co-Authors: T Sruthi, R Gandhimathi, S T Ramesh, P V NidheeshAbstract:In the present study, stabilized landfill Leachate Treatment by heterogeneous Fenton and electro-Fenton (EF) was carried out. Iron-manganese binary oxide loaded zeolite (IMZ) was used as a catalyst for generating hydroxyl radicals in the acidic medium. Heterogeneous Fenton process was capable of removing 88.6% COD from landfill Leachate at the optimal conditions, while 87.5% COD removal was observed at optimal EF Treatment conditions. Biodegradability of landfill Leachate was increased significantly from 0.03 to 0.52 after Fenton Treatment. The prepared heterogeneous catalyst was found reusable with a reduction in COD removal rate. Even though, both the processes are efficient for Leachate Treatment, the low catalyst dosage requirement in case of EF process justifies that it is more feasible than Fenton process.