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当前位置: 首页 > 文章 > 电极-SBBR对集中型沼液的脱氮除铜研究 农业工程学报 2012,28 (3) 215-219
Position: Home > Articles > Synchronous removal of nitrogen and copper from biogas slurry by electrode-SBBR Transactions of the Chinese Society of Agricultural Engineering 2012,28 (3) 215-219

电极-SBBR对集中型沼液的脱氮除铜研究

作  者：
陈玉成;杨志敏;郭玲;刘静;马焕春
单  位：
西南大学三峡库区生态环境教育部重点实验室;山西农业大学信息学院;四川晨泰工程管理咨询有限公司
关键词：
电极;脱氮;铜;SBBR;沼液
摘  要：
为了处理集中型沼液中过高的氨氮和由饲料添加剂带入的铜,将电极生物膜法与序批式生物膜反应器(SBBR)工艺的优势进行互补,构建电极-SBBR耦合新工艺,以同时去除氮与铜。通过实验室配水与沼液试验,探讨了电极-SBBR体系同步脱氮除铜的工艺参数及其效果。结果表明,集中型沼液电极-SBBR体系的操作工序为:进水→厌氧→曝气→缺氧/厌氧→出水→闲置,运行参数为:水力停留时间7.0h,厌氧0.5h、曝气4.0h、缺氧/厌氧2.5h;电流30～60mA,溶解氧(DO)4.0～5.0mg/L,碳氮比(C/N)>10.0。电极-SBBR体系对沼液中全氮(TN)、Cu2+、化学耗氧量(COD)的去除率分别达到45.79%、86.53%和84.86%,可以作为沼液脱氮除铜的新工艺。
译  名：
Synchronous removal of nitrogen and copper from biogas slurry by electrode-SBBR
作  者：
Chen Yucheng1,Yang Zhimin1,Guo Ling2,Liu Jing3,Ma Huanchun1 (1.Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education),College of Resources and Environment,Southwest University,Chongqing 400716,China;2.College of Information,Shanxi Agricultural University,Shanxi 030800,China;3.Sichuan Chentai Project Management Consulting Co.Ltd.Sichuan 610041,China)
关键词：
electrodes,denitrification,copper,SBBR,biogas slurry
摘  要：
For consideration of excessive ammonia nitrogen (NH4+-N) in concentrated biogas slurry,and copper (Cu2+) caused by additions of feed additives,a new system of electrode-sequencing batch biofilm reactor (SBBR) technique was constructed for simultaneously removing the NH4+-N and copper in concentrated biogas slurry,through integrating the advantages of two methods including electrode-biofilm and SBBR.Meanwhile,through simulated wastewater and biogas slurry,the both of pertinent parameters and effects of electrode-SBBR were also investigated.The results showed that the operating process of this technique was:adding water → anaerobic processing → aeration → anoxic or anaerobic processing → effluent dewatering → idle.The optimal conditions were suggested as follows:hydraulic retention time (HRT) was 7.0 h,anaerobic and aeration time was 0.5 h and 4.0 h respectively,and anoxia /anaerobic time was 2.5 h,furthermore,electric current ranged 30-60 mA,DO was 4.0-5.0 mg/L and C/N ratio was greater than 10.0.In summary,the removing efficiencies of total nitrogen,Cu2+ and COD from the biogas slurry could reach to 45.79%,86.53% and 84.86% respectively by the electrode-SBBR system.The results indicate that the electrode-SBBR system can be considered as a new technique for removal of nitrogen and copper from the biogas slurry simultaneously.

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