Interaction of ciprofloxacin with the activated sludge of the sewage treatment plant

Interaction of ciprofloxacin with the activated sludge of the sewage treatment plant is of importance for the ciprofloxacin migration and risk control. More than 96.0% ciprofloxacin was removed through the sludge adsorption. The sludge surface charge varied little with ciprofloxacin since most cipro...

Full description

Saved in:
Bibliographic Details
Published in:Environmental science and pollution research international 2018-12, Vol.25 (35), p.35064-35073
Main Authors: Wang, Kan, Gao, Doudou, Xu, Jirong, Cai, Lu, Cheng, Junrui, Yu, Zhenxun, Hu, Zenghui, Yu, Jie
Format: Article
Language:English
Subjects:
Activated sludge
adsorption
Antibiotics
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Carbohydrates
Ciprofloxacin
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental science
Fluorescence
Migration
Proteins
Research Article
Risk management
risk reduction
Sewage disposal
sewage treatment
Sewage treatment plants
Sludge
Strong interactions (field theory)
Surface charge
Waste Water Technology
Wastewater treatment plants
Water Management
Water Pollution Control
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Interaction of ciprofloxacin with the activated sludge of the sewage treatment plant is of importance for the ciprofloxacin migration and risk control. More than 96.0% ciprofloxacin was removed through the sludge adsorption. The sludge surface charge varied little with ciprofloxacin since most ciprofloxacin was dissociated into the neutral one. No obvious shift was observed for the soluble carbohydrate concentration and composition with the addition of ciprofloxacin, indicating the weak interaction between the carbohydrates and ciprofloxacin. The introduction of ciprofloxacin resulted in a reduction of the soluble protein concentration, a marked increase of the extracellular protein fluorescence intensities, and a dramatic emergence of new extracellular proteins. The alteration of the proteins highlights the strong interaction between the extracellular proteins and ciprofloxacin, and the consequent integration of certain soluble proteins and original unextractable inner layer extracellular proteins into the extractable extracellular proteins. Different types of interactions are suggested to dominate between the extracellular proteins and the differently dissociated ciprofloxacin.
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-018-3413-0