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Reuse of Wastewater in Explosive Machining Process with Ceramic Ultra-filtration Membranes
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(1. Insitute of Chemical Materials, Chinese Academy of Engineering Physics(CAEP), Mianyang 621999, China; 2. Jiangsu Jiuwu Hi-Tech Co., LTD, Nanjing 210000, China)

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    Abstract:

    In the process of explosive machining, wastewater containing pollutants such as explosives and oily coolant was produced. Ceramic ultra-filtration membranes could be used to remove the suspended solids for the reuse of explosive wastewater. The effects of operation parameters on permeate flux and turbidity were investigated. The membrane fouling was investigated by concentration and washing experiments. Moreover, the water quality analysis and explosive column immersing experiments were proposed to investigate the feasibility for reuse of wastewater. Results indicate that the feed pressure, circular flux, and retained flux mainly affect the permeate flux instead of turbidity. The permeate flux decreases by 40% after 10 times of concentration experiments. The tap water and 1.5% NaOH solution were used for physical and chemical membrane washing and the permeate flux recovered 96.6% after chemical washing. The permeate water of membrane and the cooling water of machine tool are similar on indicators pH, oil concentration, turbidity, and suspended solids. Moreover, the effects of permeate water and cooling water on the color of the surface of TNT and HMX explosive column are consistent. Therefore, the ceramic ultra-filtration membrane technology could be used for the reuse of wastewater in explosive machining process.

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李诗纯,刘渝,尹锐,等.陶瓷超滤膜技术用于炸药机械加工废水回用[J].含能材料,2016,24(7):709-714.
LI Shi-chun, LIU Yu, YIN Rui, et al. Reuse of Wastewater in Explosive Machining Process with Ceramic Ultra-filtration Membranes[J]. Chinese Journal of Energetic Materials,2016,24(7):709-714.

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History
  • Received:October 10,2015
  • Revised:December 10,2015
  • Adopted:December 17,2015
  • Online: June 28,2016
  • Published: July 19,2016