摘要
采用UASB-接触氧化为主体的工艺处理某奶牛养殖场废水,当原水COD_(Cr)质量浓度为3 000～4 000mg/L,NH_3-N质量浓度为30～50 mg/L时,该工艺对COD_(Cr)的去除率为97%～98%,NH_3-N去除率约为80%,配以化学深度处理,出水达到GB 8978-1996《污水综合排放标准》中的一级排放标准。
A process of UASB-biological contact oxidation was adopted to treat the cattle farm wastewater. When the CODCr concentration of raw water ranged from 3 000 mg/L to 4 000 mg/L, the NH3-N concentration from 30 mg/L to 50 mg/L, CODe and NHa-N removal rates were about 97% to 98% and 80% respectively. Followed with chemical advanced treatment, the effluent can satisfy the first grade of GB8979--1996 ＂Integrated Wastewater Discharge Standard＂.
出处
《环境科技》
2011年第1期29-31,共3页
Environmental Science and Technology
关键词
养牛场废水
UASB
氧化剂
回用
Cow farm wastewater
Up-flow anaerobic sludge blanket
Oxidizer
Reuse
