TITLE:
Effect on Treatment of the Landfill Leachate with the Furrow Irrigation in Onland Planting Reed (Phragmites)
AUTHORS:
Kun Shi, Ming Zou, Hongxiang Cai
KEYWORDS:
Cultivated Onland; Landfill Leachate; Total Nitrogen (TN); Total Carbon (TOC)
JOURNAL NAME:
Journal of Water Resource and Protection,
Vol.4 No.9,
September
21,
2012
ABSTRACT: The furrow irrigation tests were done to estimated the efficiency of the HRT(Hydraulic Retention Time) and landfill leachat collected from Dalian Maoyimgzi Municipal Solid Waste Landfill, which contained high level of COD (Chemical Oxygen Demand, 3.8 × 104 mg·L–1), TOC (total carbon, 4.8 × 103 mg·L–1), TN(total nitrogen, 2.9 × 103 mg·L–1) and SS (Suspended Solids, 6.5 × 102 mg·L–1), using the reed (phragmites) cultivated onland located in south area of Dalian Jiaotong University. The results showed that: 1) The TN concentration was decreased from 9.8 × 102 mg·L–1 in the landfill leachate to 7.6 × 102 mg·L–1 in the soil water, and the 22.4% of the removal rate; 2) The TOC concentration was decreased from 4.8 × 103 mg·L–1 in the landfill leachate to 1.0 × 103 mg·L–1 in the soil water, and the 79.2% of re- moved rate; 3) The water concentration in the soil was no significant difference of irrigation between the water and the landfill leachate; 4) ΔHRT was 2.1 hours in irrigation 39 L of the water and landfill leachate and 1.3 hours in the 9 L.