Experimental research on characteristics in evaporation process of organic industrial wastewater with high salinity and concentration
HOU Chao1,2, LIN Xuejun3, TAO Lei4, YANG Luwei1, SUN Guixiang4, YANG Rong3
1. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. Jiangsu Zhongkeshuangxin Environmental Protection Equipment Company Limited, Yancheng 224000, China;
4. Beijing Huayuantaimeng Energy-saving Equipment Company Limited, Beijing 100084, China
Abstract:A set of devices for wastewater evaporation have been built and a series of researches on evaporation of distilled ammonia wastewater and pigment production wastewater have been carried out to obtain the characteristics of the evaporation process so as to provide basic data for evaporation system design. The results show that the boiling point elevation of the wastewater increases gradually with the rise of concentration multiple, and that the boiling points of distilled ammonia wastewater and pigment production wastewater from different process stages are slightly different under the same concentration multiple. The COD in the condensate water of pigment production wastewater gradually decreases in the evaporation process. Change rules of TDS and pH in the condensate water of different kinds of wastewater are roughly the same, i.e., to decrease firstly then tend to be constant, mainly being dependent upon the volatile substances and droplet inclusion in the wastewater.
侯超, 蔺雪军, 陶磊, 杨鲁伟, 孙贵祥, 杨荣. 高盐、高浓度有机废水蒸发特性实验[J]. 科技导报, 2021, 39(17): 39-44.
HOU Chao, LIN Xuejun, TAO Lei, YANG Luwei, SUN Guixiang, YANG Rong. Experimental research on characteristics in evaporation process of organic industrial wastewater with high salinity and concentration. Science & Technology Review, 2021, 39(17): 39-44.