Title :
Technical Studies on Hazardfree Treatment and Resource Recovery of Hydrazine Hydrate Solid Waste
Author :
Liang Jiangbo ; Ling Zhang ; Jianhui Guo ; Haiyang Yang ; Mengmeng Qi ; Zhixian Chang ; Deliang Li
Author_Institution :
Inst. of Environ. & Anal. Sci., Henan Univ., Kaifeng, China
Abstract :
Technology of direct hot melt, concentration and crystallization to manufacture hydrazine hydrate solid waste into Na2CO3·H2O and Na2CO3 was researched, and principle of process was discussed. Effects of available chlorine dosage, pH value on hydrazine removal rate and crystallization temperature, water evaporation, crystallization time on purity and yield of Na2CO3 were investigated, finding out the optimal technological conditions. This technical process did not cause secondary pollution, products reached standard of GB/T22404-2008 and GB210.2-2004 respectively.
Keywords :
crystallisation; evaporation; pH; purification; temperature; waste management; GB/T22404-2008; GB210.2-2004; Na2CO3H2O; chlorine dosage; crystallization temperature; crystallization time; direct hot melt; hazardfree treatment; hydrazine hydrate solid waste manufacture; hydrazine removal rate; optimal technological condition; pH value; purity; resource recovery; water evaporation; Crystallization; Impurities; Nitrogen; Quality assessment; Solids; Standards; Temperature; hazardfree treatment; hydrazine hydrate; resource use; solid waste;
Conference_Titel :
Intelligent System Design and Engineering Applications (ISDEA), 2013 Third International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4673-4893-5
DOI :
10.1109/ISDEA.2012.328
