Title :
A Decentralized and On-Site Option for Rural Settlements Wastewater with the Adoption of Vermifiltration System
Author :
Yang Jian ; Xing Meiyan ; Lu Zhibo ; Lu Yongsen
Author_Institution :
Coll. of Environ. Sci. & Eng., Tongji Univ., Shanghai
Abstract :
A pilot-plant combined experimental process of vermifiltration was employed to treat the wastewater of rural settlements. The results indicated that the synchronous sewage and sludge treatment was realized. When the hydraulic loading is in the range of 2.4 ~ 6.72 m3-m-2-d, the vermifiltration effluent of COD, BOD5, SS and NH4-N can reach the second level of GB18918-2002 of dishcharge standard, China, respectively. Simultaneously, the excellent reduction and stabilization of the sludge produced were obtained. The reduction percent was about 38.2 ~ 43.4% and the ratio of VSS/SS of excess sludge was about 44.8 ~ 48.1%.
Keywords :
filtration; sewage treatment; sludge treatment; wastewater treatment; hydraulic loading; rural settlements; sludge treatment; synchronous sewage treatment; vermifiltration system; wastewater; Educational institutions; Effluents; Feeds; Purification; Sewage treatment; Sludge treatment; Solids; Variable structure systems; Waste management; Wastewater treatment;
Conference_Titel :
Bioinformatics and Biomedical Engineering, 2008. ICBBE 2008. The 2nd International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1747-6
Electronic_ISBN :
978-1-4244-1748-3
DOI :
10.1109/ICBBE.2008.1087
