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[Effect of pilot UASB-SFSBR-MAP process for the large scale swine wastewater treatment].
- Source :
-
Huan jing ke xue= Huanjing kexue [Huan Jing Ke Xue] 2013 Mar; Vol. 34 (3), pp. 979-85. - Publication Year :
- 2013
-
Abstract
- In this paper, a treatment process consisted of UASB, step-fed sequencing batch reactor (SFSBR) and magnesium ammonium phosphate precipitation reactor (MAP) was built to treat the large scale swine wastewater, which aimed at overcoming drawbacks of conventional anaerobic-aerobic treatment process and SBR treatment process, such as the low denitrification efficiency, high operating costs and high nutrient losses and so on. Based on the treatment process, a pilot engineering was constructed. It was concluded from the experiment results that the removal efficiency of COD, NH4(+) -N and TP reached 95.1%, 92.7% and 88.8%, the recovery rate of NH4(+) -N and TP by MAP process reached 23.9% and 83.8%, the effluent quality was superior to the discharge standard of pollutants for livestock and poultry breeding (GB 18596-2001), mass concentration of COD, TN, NH4(+) -N, TP and SS were not higher than 135, 116, 43, 7.3 and 50 mg x L(-1) respectively. The process developed was reliable, kept self-balance of carbon source and alkalinity, reached high nutrient recovery efficiency. And the operating cost was equal to that of the traditional anaerobic-aerobic treatment process. So the treatment process could provide a high value of application and dissemination and be fit for the treatment pf the large scale swine wastewater in China.
Details
- Language :
- Chinese
- ISSN :
- 0250-3301
- Volume :
- 34
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Huan jing ke xue= Huanjing kexue
- Publication Type :
- Academic Journal
- Accession number :
- 23745404