摘要
采用3套填充不同填料的兼氧-厌氧折流扳反应器(A2/BR)+水培植物或小型植物滤床组合系统,进行了处理农村生活污水的实验研究。结果表明,当温度在20~35℃、进水体积流量约为0.40 m3/d、HRT为26 h,反应器稳定运行后,A2/BR-1+水培吉祥草、A2/BR-2+水培吊兰、A2/BR-3+小型吉祥草滤床组合系统对COD的平均去除率分别为81.9%、85.7%、70.8%,出水COD分别在22.9~56.3、17.8~45.1、32.5~92.2 mg/L,对SS的平均去除率分别为89.8%、90.1%、90.4%,出水SS平均质量浓度分别在4~15、5~19、2~15 mg/L。在A2/BR+植物系统中,A2/BR缺乏适于生物脱氮除磷的底物及环境,仅靠填料吸附作用、微生物的同化作用及植物系统的吸附、吸收等作用去除的氮磷量有限。
Three sets of combined systems of A2/BR （with different fillers） ＋ hydroponics plants or plant filter beds were used to treat domestic wastewater. When the ambient temperature was 20～35℃, the influent flow was 0.40 m3/d and HRT was 26 h, and the three systems operated steadily. The results indicated that the COD average removal efflcieneies of A2/BR- 1＋HPRH （Hydroponics Pink Reineckea Herb）, A2/BR-2＋ HCC （hydroponics Chlorophytum Comosum） and A2/BR-3＋ PRHFB （Pink Reineckea Herb filter bed） were 81.9%, 85.7% and 70.8%, and effluent COD of which were 22.9～56.3 mg/L, 17.8～45.1 mg/L and 32.5～92.2 mg/L, respectively. The SS average removal efficiencies of three combined systems were 89.8%, 90.1% and 90.4%, respectively, and effluent mass concentration of SS of which were 4～ 15 mg/L, 5 ～ 19 mg/L and 2～ 15 mg/L, respectively. In the A2/BR ＋ plant systems, due to the lack of suitable substrates and environments for biological denitrification and dephosphorization.in A2/BR, removal of nitrogen and phosphorus was quite limited only by the adsorption of fillers, the assimilation of microorganisms and/or the adsorption of plant systems.
出处
《水处理技术》
CAS
CSCD
北大核心
2015年第3期103-107,111,共6页
Technology of Water Treatment
基金
国家水体污染控制与治理科技重大专项课题资助(2009ZX07102-002-003)
四川省教育厅科研项目资助(09zz033)
四川省科学技术厅科研基金(2010HH0042)
