Back to Search
Start Over
Different bioreactors for treating secondary effluent from recycled paper mill
- Source :
- The Science of the total environment. 667
- Publication Year :
- 2018
-
Abstract
- Secondary effluent from paper mill was characterized by poor biodegradability and containing recalcitrant compounds. In this study, four bioreactors, including a sequencing batch biofilm reactor (SBBR), a stirred-tank reactor (STR) and two submerged aeration reactors (SAR) were used to treat secondary effluent from a recycled paper mill respectively. The results indicated that chemical oxygen demand (COD) was increased by SAR2 treatment and COD removal efficiency for SBBR, SAR1 and STR was 39.7%, 15.7% and 30.9% respectively. It is suggested that recalcitrant compounds were removed by SBBR, SAR1 and STR respectively. Total nitrogen (TN) and total phosphorus (TP) of wastewater were increased by treatments of each bioreactor, which suggested that endogenous respiration of biomass occurred during the treatment. Microbial analysis of sludge from different bioreactors suggested that the removal of recalcitrant compounds in SBBR and STR might be related to the presence of unique microorganisms in each reactor.
- Subjects :
- Paper
China
Environmental Engineering
010504 meteorology & atmospheric sciences
Biomass
Industrial Waste
010501 environmental sciences
Wastewater
complex mixtures
01 natural sciences
Waste Disposal, Fluid
Bioreactors
Bioreactor
Environmental Chemistry
Recycling
Waste Management and Disposal
Effluent
0105 earth and related environmental sciences
business.industry
Chemistry
Microbiota
Chemical oxygen demand
technology, industry, and agriculture
Paper mill
Biodegradation
equipment and supplies
Pulp and paper industry
Pollution
Biofilms
Aeration
business
Water Pollutants, Chemical
Subjects
Details
- ISSN :
- 18791026
- Volume :
- 667
- Database :
- OpenAIRE
- Journal :
- The Science of the total environment
- Accession number :
- edsair.doi.dedup.....f73b9f0bab0fc7c6fa6a4afc540b93e0