Performance of landfill leachate treatment system with disc-tube reverse osmosis units

WANG Baozhen1, LIU Shuo1, LIU Yanping2, LI Xiujin2

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PDF(333 KB)
Front. Environ. Sci. Eng. ›› 2008, Vol. 2 ›› Issue (1) : 24-31. DOI: 10.1007/s11783-008-0024-x

Performance of landfill leachate treatment system with disc-tube reverse osmosis units

  • WANG Baozhen1, LIU Shuo1, LIU Yanping2, LI Xiujin2
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Abstract

Reverse osmosis system with the disc-tube module (DT-RO) was applied to treat landfill leachate on full scale at the Changshengqiao Sanitary Landfill, Chongqing City, China. In the first six-mouth operation phase, the treatment performance of DT-RO system had been excellent and stable. The removal rate of chemical oxygen demand (COD), total organic carbon (TOC), electrical conductivity (EC), and ammonia nitrogen (NH3-N) reached 99.2–99.7%, 99.2%, 99.6%, and over 98%, respectively. The rejection of Ca2+, Ba2+, and Mg2+ was over 99.9%, respectively. Suspended solid (SS) was not detected in product water. Effective methods had been adopted to control membrane fouling, of which chemical cleaning is of utmost importance to guarantee the long smooth operation of the DT-RO system. The DT-RO system is cleaned in turns with Cleaner A and Cleaner C. At present, the 1st stage cleaning cycle by Cleaner A and Cleaner C is conducted every 100 and 500 h, respectively, depending on raw the water quality.

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WANG Baozhen, LIU Shuo, LIU Yanping, LI Xiujin. Performance of landfill leachate treatment system with disc-tube reverse osmosis units. Front.Environ.Sci.Eng., 2008, 2(1): 24‒31 https://doi.org/10.1007/s11783-008-0024-x

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