Small test and pilot-scale test on treatment of chicken manure biogas slurry by electrodialysis process
YANG Xiao-le, SONG Fan-yong, LI Tian-yuan, FU Xiao-wen, HUANG Yu-jie, WANG Jia-ning, CHEN Guan-hong, YANG Zhong-feng
Shandong Province Key Laboratory of Applied Microbiology, Ecology Institute of Shandong Academy of Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250103, China
Abstract: Chicken manure biogas slurry after ultrafiltration treatment is concentrated by electrodialysis process,and the influences of circulating flow,voltage,pH,membrane type on the concentrations of phosphates and ammoniacal nitrogen are studied.The reaction conditions are optimized by means of Box-Behnken response surface method,and a quadratic function prediction model based on the concentrating rates of phosphates and ammoniacal nitrogen is established,which shows a good regression.The results indicate that the optimal conditions for treating with biogas slurry by electrodialysis are determined as follows:the circulating flow is 40 L·h-1,voltage is 14 V,pH is 8,and AlSL membrane is employed.The pilot test uses 5 m3 of water in total,and the optimal process conditions are as follows:voltage is 120 V,pH is 7.5,and the circulating flow is 4 m3·h-1.
杨笑乐, 宋繁永, 李天元, 傅晓文, 黄玉杰, 王加宁, 陈贯虹, 杨中锋. 电渗析工艺处理鸡粪沼液的小试和中试研究[J]. 现代化工, 2022, 42(S2): 166-173.
YANG Xiao-le, SONG Fan-yong, LI Tian-yuan, FU Xiao-wen, HUANG Yu-jie, WANG Jia-ning, CHEN Guan-hong, YANG Zhong-feng. Small test and pilot-scale test on treatment of chicken manure biogas slurry by electrodialysis process. Modern Chemical Industry, 2022, 42(S2): 166-173.
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