粪污资源化技术研究

Nutrient recycling efficiency of a two-chamber septage treatment system

试验设计了由储存池、水培池两段结构组成的污水净化系统,该系统可有效净化粪污,处理后水培液中N、P浓度低,水培期间废水排放少,可用于水培黑麦草、水芹、莴苣、青菜、生菜、小葱等植物并获得高产。该粪污净化系统技术简单,投资及运行费用低,管理方便,可以满足冬季污水处理的需要,以及实现粪污的资源化回收利用,尤其适宜小城镇和农村的粪污处理。该系统目前尚存在需改进之处,主要包括储存池存储阶段的净化潜力未得到开发及水培技术有待进一步提高等。

A 2-chamber septage treatment system, composed of deposited pool and hydroponic pool, was designed. The treatment system is found to effectively purify septage. The treated septage containing lower N and P can be used of hydroponics of Lolium multijqorum, Oenanthe stolonifera Wall , Lactuca sativa L. var. angustana Irish. , Polygonurn iapathifoliurn , Brassica chinensis L. , Lactuca sativa L. and Alliurn ascalonicurn L. with less wastewater decomposing and high yield. The system is suitable for septage treatment even in winter. Thus this form of septage purification is an ecologically safe disposal technique and it is suitable for application in small towns. While purification potential of deposited pool is developed, this purification technique is found to be a lot more effective.