Evaluation of Long-Term Wastewater Treatment Performances in Multi-Soil-Layering Systems in Small Rural Communities
Multi-soil-layering (MSL) wastewater treatment systems consist of soil units (soil mixture blocks, SMB) arranged in a brick-like pattern surrounded by permeable layers of zeolite or alternating particles of homogeneous sizes that allow for a high hydraulic loading rate. This study evaluated the perf...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-01-01
|
| Series: | Applied and Environmental Soil Science |
| Online Access: | http://dx.doi.org/10.1155/2019/1214368 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850231811832020992 |
|---|---|
| author | Kuniaki Sato Toshiyuki Wakatsuki Noriko Iwashima Tsugiyuki Masunaga |
| author_facet | Kuniaki Sato Toshiyuki Wakatsuki Noriko Iwashima Tsugiyuki Masunaga |
| author_sort | Kuniaki Sato |
| collection | DOAJ |
| description | Multi-soil-layering (MSL) wastewater treatment systems consist of soil units (soil mixture blocks, SMB) arranged in a brick-like pattern surrounded by permeable layers of zeolite or alternating particles of homogeneous sizes that allow for a high hydraulic loading rate. This study evaluated the performances of MSL systems that have been operating for 17 to 20 years in small rural communities. Even though 20 years had passed since this system was installed, high organic matter treatment performance continued. Nitrogen removal was higher than with conventional soil systems. Two of the MSL systems continued to show high phosphorus removal performances, whereas in the third system, the adsorbing capacity was relatively low, requiring further investigation. Treatment performances were largely dependent upon the structure of the MSL systems. It appeared that improving the structure to enhance the contact efficiency between the wastewater and the soil in SMB was important for enhancing treatment performances. The combined use of existing wastewater treatment systems with the MSL system was effective for preventing environmental pollution over a long period. |
| format | Article |
| id | doaj-art-02c87d1b77984b1f82fbbc49b789a425 |
| institution | OA Journals |
| issn | 1687-7667 1687-7675 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Applied and Environmental Soil Science |
| spelling | doaj-art-02c87d1b77984b1f82fbbc49b789a4252025-08-20T02:03:25ZengWileyApplied and Environmental Soil Science1687-76671687-76752019-01-01201910.1155/2019/12143681214368Evaluation of Long-Term Wastewater Treatment Performances in Multi-Soil-Layering Systems in Small Rural CommunitiesKuniaki Sato0Toshiyuki Wakatsuki1Noriko Iwashima2Tsugiyuki Masunaga3Faculty of Life and Environmental Science, Shimane University, Matsue 690-8504, JapanFaculty of Life and Environmental Science, Shimane University, Matsue 690-8504, JapanFaculty of Life and Environmental Science, Shimane University, Matsue 690-8504, JapanFaculty of Life and Environmental Science, Shimane University, Matsue 690-8504, JapanMulti-soil-layering (MSL) wastewater treatment systems consist of soil units (soil mixture blocks, SMB) arranged in a brick-like pattern surrounded by permeable layers of zeolite or alternating particles of homogeneous sizes that allow for a high hydraulic loading rate. This study evaluated the performances of MSL systems that have been operating for 17 to 20 years in small rural communities. Even though 20 years had passed since this system was installed, high organic matter treatment performance continued. Nitrogen removal was higher than with conventional soil systems. Two of the MSL systems continued to show high phosphorus removal performances, whereas in the third system, the adsorbing capacity was relatively low, requiring further investigation. Treatment performances were largely dependent upon the structure of the MSL systems. It appeared that improving the structure to enhance the contact efficiency between the wastewater and the soil in SMB was important for enhancing treatment performances. The combined use of existing wastewater treatment systems with the MSL system was effective for preventing environmental pollution over a long period.http://dx.doi.org/10.1155/2019/1214368 |
| spellingShingle | Kuniaki Sato Toshiyuki Wakatsuki Noriko Iwashima Tsugiyuki Masunaga Evaluation of Long-Term Wastewater Treatment Performances in Multi-Soil-Layering Systems in Small Rural Communities Applied and Environmental Soil Science |
| title | Evaluation of Long-Term Wastewater Treatment Performances in Multi-Soil-Layering Systems in Small Rural Communities |
| title_full | Evaluation of Long-Term Wastewater Treatment Performances in Multi-Soil-Layering Systems in Small Rural Communities |
| title_fullStr | Evaluation of Long-Term Wastewater Treatment Performances in Multi-Soil-Layering Systems in Small Rural Communities |
| title_full_unstemmed | Evaluation of Long-Term Wastewater Treatment Performances in Multi-Soil-Layering Systems in Small Rural Communities |
| title_short | Evaluation of Long-Term Wastewater Treatment Performances in Multi-Soil-Layering Systems in Small Rural Communities |
| title_sort | evaluation of long term wastewater treatment performances in multi soil layering systems in small rural communities |
| url | http://dx.doi.org/10.1155/2019/1214368 |
| work_keys_str_mv | AT kuniakisato evaluationoflongtermwastewatertreatmentperformancesinmultisoillayeringsystemsinsmallruralcommunities AT toshiyukiwakatsuki evaluationoflongtermwastewatertreatmentperformancesinmultisoillayeringsystemsinsmallruralcommunities AT norikoiwashima evaluationoflongtermwastewatertreatmentperformancesinmultisoillayeringsystemsinsmallruralcommunities AT tsugiyukimasunaga evaluationoflongtermwastewatertreatmentperformancesinmultisoillayeringsystemsinsmallruralcommunities |