| Autor: |
DENG Yuepeng, ZHAO Peng, TANG Shengyin, LI He, YANG Kai, XU Xuanbo, ZHANG Xihui |
| Jazyk: |
čínština |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Gongye shui chuli, Vol 44, Iss 10, Pp 201-206 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
1005-829X |
| DOI: |
10.19965/j.cnki.iwt.2024-0092 |
| Popis: |
An integrated oxic-anoxic-anaerobic-oxic(OAAO)-ceramic membrane MBR process with a treatment capacity of 20 000 m3/d was built to solve the problem of long-term full-load and even overload operation of a municipal wastewater treatment plant in Dinghu, Guangdong Province, China. With microbial environment precisely control, high-efficiency treatment with micro-oxygenated organisms was realized. The project operated stably after completion, with COD and NH4+-N in effluent reaching the Ⅳ class water standard in the Environmental Quality Standard for Surface Water(GB 3838-2002), while TN and TP could also meet the Class A standard in the Pollutant Discharge Standard for Urban Wastewater Treatment Plants(GB 18918-2002) stably. This project involved a total investment of 40.61 million yuan, covered an area of 4 713.4 m2, and the unit treatment cost was 0.42 yuan/t. Compared with the AAO-denitrification filter process with the same treatment capacity in this wastewater treatment plant, integrated OAAO-ceramic membrane MBR process saved 43.8% of the total investment, reduced 66% of area and 19.23% of unit treatment cost, also decreased the waste sludge production to 1.5 t/d. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
