吸附电解氧化去除水中邻苯二甲酸二丁酯

摘要:邻苯二甲酸酯（Phthalic acid esters,PAEs）具有致突变、致癌和致畸形的特点,严重干扰人类的内分泌系统,特别是生殖系统.邻苯二甲酸二丁酯（Dibutyl phthalate,DBP）是目前最常用的邻苯二甲酸酯类增塑剂之一,具有很大的毒性和积累性,已被中国环境保护部列为优先控制污染物.本文以DBP为研究对象,分别采用活性炭吸附、电解、吸附电解耦合技术对水中DBP的去除进行了研究.结果表明:吸附电解耦合技术具有协同作用能力,果壳活性炭进行吸附电解150min,DBP去除率为62.6％,高于果壳活性炭单独吸附150min的去除率（8.6％）与单独电解150min去除率（36.8％）之和.吸附电解的机理研究表明:活性炭可以强化电解对DBP的氧化作用,同时,电解可对活性炭进行再生,延长活性炭吸附饱和时间,提高活性炭的吸附量,两者表现为互相促进协同作用.

STUDY ON THE REMOVAL OF TYPIC ENDOCRINE DISRUPTING CHEMICALS DBP IN THE WASTEWATER BY ADSORPTION ELECTROLYSIS METHOD

ABSTRACT:Phthalic acid esters(PAEs) are mutagenic, carcinogenic and deforming, seriously disturbing human endocrine system, especially the reproductive system. As one of the most common phthalate esters plasticizers, dibutyl phthalate（DBP） has been listed as priority pollutant by the Chinese Ministry of Environmental Protection due to its high toxicity and accumulation. In this paper, the removal of DBP from wastewater by activated carbons adsorption alone, electrolysis alone and adsorption electrolysis method were studied respectively. Results showed that adsorption electrolysis coupling technology had synergy ability. The removal efficiency of DBP by fruit shell activated carbon adsorption and electrolysis joint for 150min was 62.6%, which was higher than the sum of the removal efficiency by activated carbon adsorption alone(8.6%) and by electrolysis alone(36.8%) for the same reaction time. The adsorption electrolysis mechanism study reveal the mutual promotion relation between activated carbons adsorption and electrolysis, as it was found that electrolysis oxidation was strengthened by activated carbons adsorption, meanwhile, saturated adsorption time was prolonged and the amount of adsorption was enhanced by electrolysis.