發(fā)布時(shí)間：2018-09-08 15:33

【摘要】：對甲魚養(yǎng)殖產(chǎn)生的溫室廢水和外塘廢水的污染情況進(jìn)行分析,發(fā)現(xiàn)溫室廢水COD、TP、TN、氨氮濃度較高,污染程度明顯高于外塘廢水,將溫室廢水和外塘廢水混合后集中于囤水池中,采用生物膜—活性污泥(HYBAS)工藝對甲魚養(yǎng)殖廢水進(jìn)行處理。結(jié)果表明,HYBAS工藝對COD、TP處理效果較好,平均去除率分別為63.76%、59.32%;受冬季低溫影響,HYBAS工藝運(yùn)行前期對TN、氨氮去除效果較差,而運(yùn)行后期去除效果良好,后期TN、氨氮平均去除率分別為42.84%、85.71%,處理出水總體滿足《地表水環(huán)境質(zhì)量標(biāo)準(zhǔn)》(GB 3838—2002)中Ⅳ類標(biāo)準(zhǔn)和《浙江省水產(chǎn)養(yǎng)殖池塘生態(tài)化建設(shè)與改造規(guī)范》養(yǎng)殖廢水排放標(biāo)準(zhǔn)。HYBAS工藝建設(shè)運(yùn)行費(fèi)用低、抗沖擊負(fù)荷能力強(qiáng)、處理效果良好,是一種簡單易行的甲魚養(yǎng)殖廢水處理工藝。
[Abstract]:The pollution of greenhouse wastewater and outer pond wastewater produced by turtle culture was analyzed. It was found that the concentration of COD,TP,TN, ammonia nitrogen in greenhouse wastewater was higher than that in outer pond wastewater, and the pollution degree was obviously higher than that in outer pond wastewater. The mixture of greenhouse wastewater and outer pond wastewater was concentrated in storage pool. The wastewater from turtle culture was treated by biofilm-activated sludge (HYBAS) process. The results showed that the effect of HYBAS process on COD,TP treatment was better, the average removal rate was 63.76 and 59.32.The effect of HYBAS process on TN, ammonia nitrogen removal in the early stage of operation was poor, but that in the later stage of operation was good, due to the influence of low temperature in winter. The average removal rate of TN, ammonia nitrogen was 42.84 and 85.71respectively in the later period. The treated effluent generally met the Class 鈪，

本文編號(hào)：2230940