新型BCO-SBBR组合工艺处理猪场沼液的效果

发布时间：2018-05-10 09:57

本文选题：生物接触氧化(BCO) + 序批式生物膜反应器(SBBR)　；参考：《江苏农业科学》2017年13期

【摘要】：针对猪场沼液具有可生化性差、碳氮比(C/N)失调的特点,采用新型生物接触氧化-序批式生物膜反应器(BCO-SBBR)组合工艺对其进行处理,研究该组合工艺在实际工程应用中对化学需氧量(COD_(Cr))、氨态氮(NH_3-N)和总磷的去除效果。结果表明,新型BCO-SBBR组合工艺能够有效去除猪场沼液中的COD_(Cr)、NH_3-N和总磷,其去除率分别为53%、57.6%和49%。但是,COD_(Cr)主要是在BCO中去除的,SBBR由于进水中C/N严重失调,对COD_(Cr)的去除率很低。因此,采取向SBBR添加原水的方法提高SBBR进水中的C/N,使其对COD_(Cr)的去除率增大。在添加原水后,组合工艺对COD_(Cr)、NH_3-N和总磷的去除率分别为50.0%、81.0%、54.7%,可有效处理猪场沼液。
[Abstract]:In view of the poor biodegradability and C / N ratio of biofilm in pig farm, a new biological contact oxidation-sequencing batch biofilm reactor (BCO-SBBR) was used to treat the biofilm. The removal efficiency of chemical oxygen demand (COD), ammonia nitrogen (NH _ 3-N) and total phosphorus (TP) by the combined process in practical engineering was studied. The results showed that the new BCO-SBBR combined process could effectively remove the COD _ (3) -N and total phosphorus (TP) from the biogas liquid of pig farm, and the removal rates were 57.6% and 49%, respectively. However, the removal rate of BCO is very low due to the serious imbalance of C / N in the influent. Therefore, the method of adding raw water to SBBR can increase the C / N ratio in the influent of SBBR and increase the removal rate of SBBR. After adding raw water, the removal rates of COD _ (+) Cr ~ (+ +) NH _ (3-N) and total phosphorus by the combined process were 50.0% and 81.0% ~ 54.7, respectively, which could effectively treat the biogas liquid from pig farm.
【作者单位】：南昌大学环境与化学工程学院鄱阳湖环境与资源利用教育部重点实验室;南昌工程学院土木与建筑工程学院;
【基金】：国家自然科学基金(编号:51568048) 国家科技支撑计划重点项目(编号:2007BAB23C02) 江西省教育厅科技落地计划(编号:GJJ12001326) 江西省科技计划(编号:20121BBF60052) 江西省自然科学基金(编号:20132BAB203024) 南昌大学鄱阳湖环境与资源利用教育部重点实验室开放基金(编号:13005875)
【分类号】：X713

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