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

fYear

2013

fDate

16-18 Jan. 2013

Firstpage

1383

Lastpage

1386

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ISDEA.2012.328

Filename

6456018