景观生态-SBR复合工艺生活污水处理效能与污泥性状

Treatment efficiency and sludge characteristics of vegetation-sequencing batch bioreactor(V-SBR) process for domestic wastewater treatment

景观生态-SBR复合系统是一种新型生态组合工艺,与传统工艺相比具有景观性好、处理效果稳定、对周边环境影响小等优点。由于该工艺运行灵活、建设费用低,其更适用于分散型污水处理。研究了复合工艺在生活污水处理过程中的效能与污泥性状,并与传统SBR工艺对比,考察了复合系统中活性污泥性状的特征,包括污泥脱水性、沉降性、污泥浓度、粒径分布、EPS、SMP等指标,分析了污泥性状变化原因及其与复合工艺处理效果的关系,为景观生态-SBR复合工艺的工程化应用提供理论依据和技术支撑。

Vegetation-sequencing batch bioreactor（ V-SBR） process is an environment-friendly ecological hybrid system for decentralized wastewater treatment. Contrary to conventional activated sludge process,V-SBR has its own merits,including a good landscaping capability,a stably high removal effectiveness and a minimal impact on ambient environments. Moreover,its easy-manipulation and high cost-effectiveness make V-SBR suitable for decentralized wastewater treatment. In the present work,treatment efficiency and sludge properties of VSBR process were investigated,and more attention was paid to sludge characteristics,including sludge dewaterability,settleability,sludge concentration,particle size distribution,EPS,SMP,and their transformation profiles were examined and analyzed. The results obtained is very important to understand V-SBR process and to give direct technical evidences for its practical application.