[Preparation of Adsorption Ceramsite Derived from Sludge Biochar].

Adsorption ceramsite (SKC) was prepared with biochar (BC) derived from municipal sludge and kaolin (KL) based on the optimized processing parameters to adsorb ciprofloxacin (CIP) in aqueous solutions. The CIP adsorption mechanism of SKC was investigated by adsorption kinetics and isotherm adsorption models, combined with the analysis of microstructure, pore structure, phase composition, and zeta potential. Furthermore, the heavy metal leaching toxicity was assessed using the toxicity characteristic leaching procedure (TCLP) method.

Study of ciprofloxacin biodegradation by a Thermus sp. isolated from pharmaceutical sludge.

Ciprofloxacin (CIP) is an antibiotic drug frequently detected in manure compost and is difficult to decompose at high temperatures, resulting in a potential threat to the environment. Microbial degradation is an effective and environmentally friendly method to degrade CIP. In this study, a thermophilic bacterium that can degrade CIP was isolated from sludge sampled from an antibiotics pharmaceutical factory.

Biodegradation of sulfamethazine by an isolated thermophile-Geobacillus sp. S-07.

Sulfamethazine (SM2) is an antimicrobial drug that is frequently detected in manure compost, is difficult to degrade at high temperatures and is potentially threatening to the environment. In this study, a thermophilic bacterium was isolated from the activated sludge of an antibiotics pharmaceutical factory; this bacterium has the ability to degrade SM2 at 70 °C, which is higher than the traditional manure composting temperature. The strain S-07 is closely related to Geobacillus thermoleovorans based on its 16S rRNA gene sequence.