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Updated: May 8, 2026
15:19
Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor
Published on: October 15, 2015
[Effluent carbon source improvement and sludge reduction by hydrolysis reactor with enhanced sludge utilization]
Ya Xiong1, Qiang Wang, Ying-Hao Song
1School of Water Resource & Environment, China University of Geosciences, Beijing 100083, China. xiongya2008@gmail.com
Huan Jing Ke Xue= Huanjing Kexue
|September 14, 2013
Summary
This study reformed sludge hydrolysis reactors to enhance sludge breakdown and improve effluent quality. The new process significantly improved the sludge-to-biochemical oxygen demand ratio and increased soluble chemical oxygen demand, aiding nutrient removal.
Area of Science:
- Environmental Engineering
- Wastewater Treatment Technologies
- Bioreactor Design
Background:
- Sludge hydrolysis is crucial for wastewater treatment efficiency.
- Existing hydrolysis reactors face limitations in performance.
- Improving effluent carbon source is key for nutrient removal.
Purpose of the Study:
- To reform existing hydrolysis reactor structures.
- To strengthen sludge hydrolysis.
- To enhance the effluent carbon source for better nutrient removal.
Main Methods:
- Combined separation of suspended solids from influent.
- Hydrolysis of settled sludge in a reformed reactor.
- Experimental analysis of effluent parameters.
Main Results:
- Achieved 81.4% removal rate of suspended solids (SS).
- Reduced average SS/BOD5 ratio in effluent to 0.4.
- Increased SCOD/COD by 35.4% and COD(0.45-5)/COD by 17.7%.
- Decreased COD(> 100)/COD by 53.2%.
- Improved BOD5/TN ratio to 4.7 and BOD5/TP ratio to 36.4.
- Attained a sludge hydrolytic rate of 51.9%.
Conclusions:
- The reformed reactor effectively strengthens sludge hydrolysis.
- The process significantly improves effluent carbon source quality.
- Enhanced effluent quality supports improved nitrogen and phosphorus removal.
- The study achieves sludge reduction and resource regeneration.
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