Application of Activated Carbon in the Removal of COD in Zero-emission Reverse Osmosis Concentrate

• 作者: Li Jun Li Mengjun Liu Xiaojing Tian Lei Zhu Haichen
• 来源期刊: 气象与环境研究:英文版
• 学科: 地球科学
• 关键词: REVERSE osmosis CONCENTRATE COD ACTIVATED carbon ADSORPTION performance
• 年，卷（期）: 2019,（6）
• 页码范围: 75-78
• 页数: 4页
• 分类号: X70

摘要

For further reducing the load of subsequent processing,the activated carbon adsorption method was used to remove organic compounds from reverse osmosis water concentrate,and the influence of variety of activated carbon,residence time,dosage of activated carbon and p H on the removal rate of COD was studied.The results show that the removal rate of COD was up to 61.8%under the conditions of influent p H=6,400 ml water,30 min of residence time and 1.5 g of 2#activated carbon as the adsorbent.In the dynamic adsorption experiment and field application,the adsorption tower was loaded with 40 tons of 2#activated carbon,and the inflow of influent water was 100 m^3/h;average COD was 142 mg/L,and p H was 8.04;the residence time was 36 min.Under the above conditions,when effluent COD was less than 60 mg/L,the adsorption capacity of activated carbon was up to 1330 m^3/t.