Denitrifying sulfide removal process on high-tetracycline wastewater
Journal
Bioresource Technology
Journal Volume
205
Pages
254-257
Date Issued
2016
Author(s)
Abstract
Antibiotics wastewater from tetracycline (TC) production unit can have high levels of chemical oxygen demand, ammonium and sulfate and up to a few hundreds of milligrams per liter of TC. Denitrifying sulfide removal (DSR) process is set up for simultaneously removal of sulfur, carbon and nitrogen from waters. The DSR process was for the first time studied for treating TC wastewaters. The TC stress has no adverse effects on removal rates of nitrate and acetate; however, it moderately deteriorated sulfide removal rates and S0 accumulation rates when the concentration is higher than 100 mg L-1 TC. The Thauera sp., and Pseudomonas sp. present the heterotrophs and Sulfurovum sp. presented the autotroph for the present DSR reactions. The high tolerance of TC stress by the tested consortium was explained by the excess production of extracellular polymeric substances at high TC concentration, which can bind with TC for minimizing its inhibition effects. © 2016 Elsevier Ltd.
Subjects
Denitrifying sulfide removal; Elemental sulfur; Extracellular polymeric substances; Tetracycline
SDGs
Other Subjects
Carbon; Chemical oxygen demand; Denitrification; Polymers; Sulfur; Sulfur compounds; Wastewater treatment; Accumulation rates; Carbon and nitrogen; Denitrifying sulfide removal; Elemental sulfur; Extra-cellular polymeric substances; Inhibition effect; Simultaneously removal; Tetracycline; Nitrogen removal; acetic acid; carbon; nitrate; nitrogen; polymer; sulfide; sulfur; tetracycline; water; acetic acid derivative; ammonium derivative; antiinfective agent; nitric acid derivative; sulfate; sulfide; tetracycline; waste water; ammonium; antibiotics; bacterium; chemical oxygen demand; concentration (composition); exopolymer; inhibition; pollutant removal; sulfate; sulfide; tolerance; wastewater; Article; autotroph; concentration (parameters); denitrification; environmental stress; microbial community; nonhuman; polymerization; priority journal; Pseudomonas; Sulfurovum; Thauera; waste component removal; waste water management; bioreactor; chemistry; denitrification; devices; drug effects; Epsilonproteobacteria; isolation and purification; metabolism; microbial consortium; microbiology; procedures; sewage; waste water; Pseudomonas sp.; Sulfurovum; Thauera; Acetates; Ammonium Compounds; Anti-Bacterial Agents; Bioreactors; Carbon; Denitrification; Epsilonproteobacteria; Microbial Consortia; Nitrates; Nitrogen; Pseudomonas; Sulfates; Sulfides; Sulfur; Tetracycline; Thauera; Waste Disposal, Fluid; Waste Water
Type
journal article