中国稻米

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稻壳灰处理印染废水效果研究

  1. 1 佳木斯市环境保护监测站,黑龙江 佳木斯 154004;2 黑龙江省环境监测中心站,哈尔滨 150056;3 齐齐哈尔大学化学与化学工程学院,黑龙江 齐齐哈尔 161000
  • 出版日期:2018-01-20 发布日期:2018-01-20
  • 通讯作者: 李健

Effects of Rice Husk Ash on Dyeing Wastewater

  • Online:2018-01-20 Published:2018-01-20

摘要: 研究了稻壳灰在不同条件下(不同投加量、不同pH值、不同振荡吸附时间)对印染废水的处理效果,并在最佳测试条件下,测试了稻壳灰对废水中污染物的去除效率和污染物达标排放情况。结果表明,当稻壳灰投加量为80 g/L、不改变投加后废水pH、吸附振荡时间为20 min时,稻壳灰对COD为1517 mg/L、SS为726 mg/L、色度为845的印染废水中COD去除效率为90.2%、SS去除效率为89.4%、色度去除效率为99.3%;处理后废水中污染物浓度显著降低,COD浓度均值为149 mg/L、SS浓度均值为77 mg/L、色度为6,污染物达标排放。稻壳灰处理印染废水具有较好的去污效果。

关键词: 稻壳灰, 印染废水, 投加量, pH, 吸附振荡时间, 去除效率

Abstract: In order to study the effects of rice husk ash on dyeing wastewater, the removal efficiency of rice husk ash in dyeing wastewater at different dosage, different pH, different oscillation adsorption time were tested; and in the preferred test conditions, the removal efficiency of pollutants in wastewater and pollutant emissions standards were discussed. The results showed that COD removal efficiency was 90.2%, SS removal efficiency was 89.4%, and color removal efficiency was 99.3% when rice husk ash dosage of 80 g/L, which didn’t change the pH of the wastewater, adsorption time of oscillation was 20 min. Rice husk ash has good effects on dyeing wastewater.

Key words: rice husk ash, dyeing wastewater, dosage, pH, adsorption oscillation time, removal efficiency

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