水生植物对生态-A/O工艺复合系统性能的影响
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摘要
生态技术与生物污水处理工艺复合系统是一种环境友好、新型高效污水处理技术。研究了水生植物对生态-A/O工艺复合系统除污性能和污泥性能的影响。反应器运行25 d后,添加植物组R2出水中COD、NH~+_4-N、TN和TP去除率分别达96.79%、94.74%、83.67%和41.94%,各项指标均略高于空白组R1。植物生长良好,发达的根系为微生物提供了良好的生长场所,植物根系污泥量较大,出现了大量原、后生动物,丰富了微生物群落多样性。R2污泥EPS中多糖和蛋白质浓度分别为R1污泥中的42.6%和62.1%,污泥沉降性能也得到一定提升。
Activated sludge ecological system involving aquatic plants and biological process is an environment-friendly and novel wastewater treatment technology. The paper studied the effects of aquatic plant in ecological vegetation-A/O combined system. After 25-day operation,COD, ammonia, TN and TP removal rates by the reactor added with aquatic plant(R2)reached 96.79%, 94.74%, 83.67%, and 41.94%,respectively,which were all slightly higher than that of the control reactor(R1). The aquatic plant grew well,the microbial biomass on plant roots was large,and the bacteria community diversity was much richer. The concentration of polysac charide and protein in the R2 sludge EPS were 42.6% and 62.1% of those in the R1 sludge,respectively,the sludge settling ability was also slightly improved.
Activated sludge ecological system involving aquatic plants and biological process is an environment-friendly and novel wastewater treatment technology. The paper studied the effects of aquatic plant in ecological vegetation-A/O combined system. After 25-day operation,COD, ammonia, TN and TP removal rates by the reactor added with aquatic plant(R2)reached 96.79%, 94.74%, 83.67%, and 41.94%,respectively,which were all slightly higher than that of the control reactor(R1). The aquatic plant grew well,the microbial biomass on plant roots was large,and the bacteria community diversity was much richer. The concentration of polysac charide and protein in the R2 sludge EPS were 42.6% and 62.1% of those in the R1 sludge,respectively,the sludge settling ability was also slightly improved.
引文
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[2] 王艳英,王晓磊,郜爱玲. 水生植物净化水质功能研究进展 [J]. 中国城市林业,2017,15(4):6-10.
[3] 赵杨. 人工湿地植物对北方河流净化效果模型研究 [J]. 工业水处理,2016,36(10):52-55.
[4] 张梦绯. 生态修复技术在治理城市黑臭河流的应用 [J]. 污染防治技术,2017,30(5):59-62.
[5] 黄袁金. FBR工艺应用于污水处理厂工艺提标升级改造 [J]. 能源环境保护,2016,30(3):27-30.
[6] Hong J M, Hu M M,Sun R,et al. Unraveling characteristics of nutrient removal and microbial community in a novel aerated landscape-activated sludge ecological system [J]. Bioresource Technology,2016,212:280-288.
[7] 程恒卫,张景成,张彦平,等. FBR工艺处理生活污水试验研究 [J]. 水处理技术,2008,34(12):74-77.
[8] 方雨. BFBR立体生态处理技术在市政污水处理厂改造工程中的应用 [J]. 中国高新技术企业,2017,10:117-118.
[9] 王忠民,王跃进,周鹏. 苯酚-硫酸法测定葡萄多糖含量 [J]. 新疆农业大学学报,2004,27(2):87-90.
[10] 王孝平,邢树礼. 考马斯亮蓝法测定蛋白含量的研究 [J]. 天津化工,2009,23(3):40-42.
[11] Yuan J J,Dong W Y,Sun F Y,et al. An ecological vegetation-activated sludge process (V-ASP) for decentralized wastewater treatment: system development,treatment performance,and mathematical modeling [J]. Environmental Science and Pollution Research,2016,23:10234-10246.
[12] Yuan J J,Dong W Y,Sun F Y,et al. Bacterial communities and enzymatic activities in the vegetation-activated sludge process (V-ASP) and related advantages by comparison with conventional constructed wetland [J]. Bioresource Technology,2016,220:341-351.第一作者