Author:
Ke Yuxin,Zhu Xiaoli,Si Shaocheng,Zhang Ting,Wang Junqiang,Zhang Ziye
Abstract
Simultaneously eliminating tetracycline (TC) and copper (Cu-II) from wastewater was investigated by applying a novel adsorbent fabricated by transforming spent bleaching earth (SBE) into attapulgite & carbon composites (A&Cs). Pyrolysis temperature for A&Cs preparation exhibited a positive effect on Cu(II) adsorption, while the AC500 possessed the greatest performance for TC remediation. Interestingly, a synergistic effect instead of competitive adsorption occurred between Cu(II) and TC under the combined binary system, as both TC and Cu(II) adsorption amount on A&C500 increased more than that in the single system, which could be mainly attributed to the bridge actions between the TC and Cu(II). In addition, hydrogen bonding, ᴨ-ᴨ EDA interaction, pore-filling and complexation exerted significant roles in the adsorption process of TC and Cu(II). In general, this study offered a new perspective on the regeneration of livestock and poultry industry wastewater polluted with antibiotics and heavy metals.
Funder
National Key Research and Development Program of China
Key Research and Development Program of Shaanxi Province
Science and Technology Program of Xi’an City
Agricultural Science and Technology Innovation Project of Shaanxi Province
Subject
Health, Toxicology and Mutagenesis,Public Health, Environmental and Occupational Health