【摘要】 芬顿（Fenton）氧化法是一种高效氧化技术,用其对中纤板工业废水进行预处理,可以明显改善废水的可生化性,显著提高后续的废水处理效果。该研究采用四因素四水平正交试验,探讨了芬顿试剂氧化法预处理中纤板工业废水对COD和色度的去除效果。结果表明:初始pH值对该反应体系影响最大,其余依次是[H₂O₂]/[Fe²⁺]摩尔比、FeSO₄·7H₂O投加量和反应时间。在此基础上,通过4个单因素优化试验,获得芬顿氧化处理的优化条件:初始pH值5、[H₂O₂]/[Fe²⁺]摩尔比6:1、FeSO₄·7H₂O投加量0.03 mol/L和反应时间120 min。在该优化条件下对中纤板工业废水进行预处理,COD和色度去除率可分别达到78%和80%,同时废水的可生化性得到明显改善,为后续处理打下良好的基础。更多还原

【Abstract】 Pretreatment with Fenton reagent,an efficient oxidation technology,to MDF industrial wastewater can increase the biodegradability of the wastewater significantly,and accordingly improve the effectiveness of its subsequent treatment.An orthogonal experiment with four factors and four levels was carried out to detect the removal efficiency of COD and color of MDF industrial wastewater in the process of pretreatment.Results show that the greatest affecting factor on the reaction system is the initial pH value,and other factors in order are molar ratio of[H₂O₂]/[Fe²⁺],dosage of FeSO₄·7H₂O and reaction time.Based on this result,four single factor tests are conducted,and the optimum treating conditions for pretreatment of MDF industrial wastewater with Fenton reagent are acquired as following:initial pH value 5,[H₂O₂]/[Fe²⁺]molar ratio 6:1,FeSO₄·7H₂O dosage0.03 mol/L and reaction time 120 min.Under this set of optimum conditions,the removal efficiency of COD and color of wastewater during the pretreatment process reach 78%and 80%respectively,and at the same time,the biodegradability of the wastewater increases evidently,creating a good base for the subsequent wastewater treatment.更多还原