Sludge Treatment and Application in Greening
TANG Ming fang,WANG Bai xue and ZHENG Huai li
DOI:10.11835/j.issn.1674-4764.2009.04.020
Received ,Revised , Accepted , Available online July 01, 2015
Volume ,2009,Pages 103-106
- Abstract
Sludge is a very good fertilizer source and has higher value in use as nutrients for greening, whereas sludge also contains higher concentration of heavy metals, with which urban underground water would be suffered secondary pollution. A test of greening with sedium lineare and modified fly ash passivation sludge was carried out to study the impacts of different mixture ratio and dosage of modified fly ash on the plant’s growth and leachate. It was shown that 20% mixture ratio of modified fly ash was the optimum for sludge treatment and 80% of heavy metals pollution can be removed.