羊粪生物炭对SBR系统污水处理性能的影响  

Effect of Sheep Manure Biochar on Wastewater Treatment Performance of SBR System

作　　者：陈佼 黄雯 陆一新[1] 孙解语 李洋涛 张建强 CHEN Jiao;HUANG Wen;LU Yixin;SUN Jieyu;LI Yangtao;ZHANG Jianqiang(School of Materials and Environmental Engineering,Chengdu Technological University,611730;Faculty of Geosciences and Environmental Engineering,Southwest Jiaotong University,611756,Chengdu,China)

机构地区：[1]成都工业学院材料与环境工程学院,611730 [2]西南交通大学地球科学与环境工程学院,四川成都611756

出　　处：《水处理技术》2021年第10期108-112,共5页Technology of Water Treatment

基　　金：国家自然科学基金项目(21705133);四川省科技计划项目(2020YFG0067);四川省环境污染防治重点研发项目(2017SZ0179);国家级大学生创新训练计划项目(202111116026)。

摘　　要：在450、550、650℃热解温度下分别制得羊粪生物炭BC450、BC550、BC650,投加至序批式反应器(SBR)中,考察了其对SBR系统污水处理效果和污泥沉降性能的影响。结果表明,投加羊粪生物炭后,SBR系统对COD、NH_(4)^(+)-N、TN、TP的去除效果均有所提高,且羊粪生物炭的热解温度越高,对污染物去除效果的提升作用越明显。当BC650投加量为0.8 g/L时,COD、NH_(4)^(+)-N、TN、TP的平均去除率分别为93.1%、96.2%、87.7%、90.7%,比未投加生物炭分别提高了10.7、26.0、43.6、15.9百分点,启动时间缩短了52.4%。其中BC650拥有更大的比表面积和更丰富的孔隙结构,稳定运行期生物炭载膜量达163.5 mg/g,有效改善了污泥的沉降性能,为强化SBR系统的污水处理性能提供了有利条件。Sheep manure biochar BC450, BC550 and BC650 were prepared at 450 ℃, 550 ℃ and 650 ℃ pyrolysis temperature, respectively, and were added to sequencing batch reactor(SBR) to investigate the influence of them on the wastewater treatment effect and sludge settling performance of SBR system. The results showed that, the removal efficiency of COD, NH_(4)^(+)-N, TN and TP of SBR system was improved after adding sheep manure biochar, and the higher the pyrolysis temperature of sheep manure biochar, the more obvious the improvement of pollutant removal effect. When the dosage of BC650 was 0.8 g/L, the average removal rates of COD, NH_(4)^(+)-N, TN and TP were 93.1%, 96.2%, 87.7% and 90.7% respectively, which were10.7, 26.0, 43.6 and 15.9 percentage points higher than those without adding biochar, and the start-up time was 52.4% shorter. Among them, BC650 had a larger specific surface area and a richer pore structure. During the stable operation period, the biofilm loading of biochar reached 163.5 mg/g,and it could effectively improve the settlement performance of sludge and provide favorable conditions for strengthening the wastewater treatment performance of SBR system.

关 键 词：羊粪生物炭 序批式活性污泥法(SBR) 去除率 生物膜 活性污泥 

分 类 号：X703.1[环境科学与工程—环境工程]