Effects of Livestock Wastewater NH4 +-N Incubation on Landfill CH4 Oxidation by Mineralized Refuse Particle
Zhang Houhu,Jia Bo,Zhang Yi,Wang Wei,Wang Dandan and Zhang Weijia
DOI:10.11835/j.issn.1674-4764.2013.05.011
Received ,Revised , Accepted , Available online July 01, 2015
Volume ,2013,Pages 62-66
- Abstract
Ammonia oxidizing bacteria was accumualted for landfill CH4 oxidation in the mineralized refuse throguh livestock wastewater NH4 +-N incubation, which would minimize the total Greenhouse gas emission equivalent from MSW landfill. Mineralized refuse was firstly incubated by livestock wastewater NH4 +-N during the 120d operation. Mineralized refuse possessed the strong nitrification capacity with the removal rate of NH4 +-N content over 60% during the 120 d operation. After 200 mg N kg -1 was inputted, NO3 --N content produced from the 120 d incubated mineralized refuse was 2.0-time and 3.8-time more than those of the original mineralized refuse and clay soil, respectively. CH4 decrease and the net produce of CO2 can be well fitted the one- and zero-order kinetics model during the 120 h incubation (R 2>0.68), respectively. Similar as nitrogen turnover, CH4 oxidation capacity from the 120 d incubated mineralized refuse was 10.6% and 59.3% more than those of the original mineralized refuse and clay soil, respectively. Therefore, the mineralized refuse can be upgraded for the CH4 oxidation throng NH4 +-N content incubation from the livestock wastewater and the influence on CH4 oxidation by other components (including CODCr, SS and phosphate) from wastewater should be further investigated.