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| Treatment effect of black and odorous water body of nitrogen and phosphorus in rivers using water activation technology |
| Received:July 18, 2025 |
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| KeyWord:water activation technology process package;black and odorous water;water body self-cleaning device;high-efficiency phosphorus adsorbent;nitrogen and phosphorus removal effect |
| Author Name | Affiliation | E-mail | | WANG Jun | Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
Key Laboratory for Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China | | | ZHANG Ying | Chongqing China Coal Technology Engineering Consulting Co., Ltd., Chongqing 400042, China | | | YAN Hailang | Chongqing China Coal Technology Engineering Consulting Co., Ltd., Chongqing 400042, China | | | SHEN Feng | Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
Key Laboratory for Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China | | | LIU Fang | Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
Key Laboratory for Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China | | | WANG Qiang | Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
Key Laboratory for Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China | | | HUANG Zhiping | Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
Key Laboratory for Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China | bjhuangzp@126.com |
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| Abstract: |
| In view of the problems of high investment and maintenance cost in traditional black and odorous water remediation technology, this study applied the activated water technology process package composed of water body self-cleaning device and high-efficiency phosphorus adsorbent to carry out about 130 days application demonstration of black and odorous water remediation and restoration. The main goal is to upgrade the ammonia nitrogen（NH3-N）and total phosphorus（TP）concentrations in water bodies from inferior Ⅴ class to Ⅲ class. The results showed that the NH3-N reduced from 4.00 mg·L-1 to 1.0 mg·L-1 after the operation of the water body self-cleaning device for 100 days, and the TP is reduced from 0.42 mg·L-1 to 0.20 mg·L-1 after the application of high-efficiency phosphorus adsorbent for 4 weeks, both of which are improved from inferior Ⅴ class to class Ⅲ, reaching the requirements of the demonstration goal, and the paired T test between sections also shows that the activated water technology process package has a significant improvement effect on NH3-N and TP. The process package had an investment of about 13.89 yuan per ton of water, and the power cost of one single water body selfcleaning device is about 2.88 yuan·d-1, and the operating cost of about 0.13 yuan per ton of water, which had strong cost performance and could provide a cost-effective solution for the restoration and control technology of black and odorous water. |
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