Abstract
Chinese traditional medicine wastewater, which was affluent in glycosides, was treated by a process combined a simple hydrolyzation and acidification pretreatment with a aerobic submerged membrane bio-reactor (SMBR), which was designed specially, equipped with electro-control and backwashing device. The average chemical oxygen demand (COD) concentration in influent was 1090.1 mg/L. The backwashing time was 5 minutes, and the average hydraulic retention time (HRT) was 5.97 hours. The average COD removal efficiency was 89.4%, and the COD concentration in effluent achieved the second level of the general wastewater effluent standard GB8978-1996 for the raw medicine material industry. It was a viable process for medium strength Chinese traditional medicine wastewater treatment.
| Original language | English |
|---|---|
| Pages (from-to) | 881-883+993 |
| Journal | Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology |
| Volume | 38 |
| Issue number | 6 |
| State | Published - Jun 2006 |
Keywords
- Backwashing
- Chinese traditional medicine wastewater
- Submerged membrane bioreactor
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