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Anaerobic Co-digestion: Principles and Guidelines Toward More Efficient Systems
Anaerobic Co-digestion: Principles and Guidelines Toward More Efficient Systems
"Anaerobic Co-digestion: Principles and Guidelines Toward More Efficient Systems aims to provide comprehensive guidelines and insights for the planning, design, operation, and maintenance of anaerobic co-digestion systems. The practice of co-digestion of wastewater residuals with high strength organic wastes and harnessing the resulting biogas has been adopted by a growing number of water resource recovery utilities, particularly over the last decade. This technical publication intends to equip engineering and design professionals, researchers, operations and maintenance staff, educators, and students with a detailed understanding of fundamental concepts and practical applications of anaerobic co-digestion."
Thermal hydrolysis process in sludge treatment
Thermal hydrolysis process in sludge treatment
“TCHP reduces the volume of solids. This boosts the availability of digester capacity and the quality of outputs in biogas and solids. Biogas can be turned into heat, while the cake solids can be turned into fertilizer, soil amendments or nutrients. Thus, the product increases economic gains, economic care and offers a better future for communities." Civil and Structural Engineer Magazine.
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Impact of thermochemical hydrolysis
Impact of thermochemical hydrolysis
“Impact of thermochemical hydrolysis on sludge viscosity, floc morphology, and dewaterability was evaluated at the PONDUS full scale installation. Implementation of thermochemical hydrolysis improve the dewaterability by 2.5% points with maximum cake dryness of 31%. The thermal hydrolysis reactor effectively hydrolyzed TWAS with present total solids of 6-8.5%. Biogas production was increased by 20% with 9% increase on VSR. The results of this study suggest that the thermochemical hydrolysis can effectively reduce sludge viscosity and improve sludge dewaterability and biogas production." Florida Water Resources Journal.
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Particle size matters in activated sludge systems
Particle size matters in activated sludge systems
"Researchers concluded that operating activated sludge processes at a longer SRT may improve solids settleability and reduce effluent turbidity. Also, mean particle size could be used to monitor for proper control of solids retention time, evaluate solids settleability, and optimize secondary effluent disinfection." Water Environment & Technology Magazine.
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Removal of 17β-estradiol in a biological active carbon reactor
Removal of 17β-estradiol in a biological active carbon reactor
“Removal of 17β-estradiol in a biological active carbon reactor with acetic acid and humic acid,” describes research into the biodegradation of natural estrogens in a biofilm system. The study revealed that a readily biodegradable carbon source such as acetic acid can assist with removing 17b-estradiol in a biologically active carbon reactor." Water Environment & Technology Magazine.
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