IFAS工艺在颜料化工污水处理厂改造中的应用

Upgrading a Wastewater Treatment Plant of Pigment Wastewater Using the IFAS Process

摘要: 采用IFAS工艺对某颜料化工厂废水进行中试研究，考察其处理能力及抗负荷能力，并选用IFAS工艺对其污水厂进行改造。结果表明，IFAS工艺出水COD、NH⁺₄-N及TN浓度均可满足《辽宁省污水综合排放标准》(DB 21/1627-2008)中限定的对染料行业出水污染物排放标准的要求(COD < 300 mg/L、NH⁺₄-N < 30 mg/L、TN < 50 mg/L )。改造后的出水COD、NH⁺₄-N及TN浓度均能够达到上述排放标准要求，进一步说明IFAS工艺可用于颜料化工企业污水处理厂的改造项目中。

Abstract: A pilot-scale IFAS process was carried out in the wastewater treatment plant of pigment chemical plant, in order to investigate the treatment performance and the resistance to impact load. In ad-dition, the feasibility of the modification of the wastewater treatment plant using the IFAS process was also investigated. The results showed that the effluent COD, NH⁺₄-N and TN of the IFAS process and the modified wastewater treatment plant were satisfying the discharge standard (COD < 300 mg/L, NH⁺₄-N < 30 mg/L, TN < 50 mg/L). Therefore, the IFAS process was able to reconstruct the wastewater treatment plant of pigment chemical plant.