The composition of wastewater from dairy processing plants makes it highly suitable for biological wastewater treatment processing. As well anaerobic biological treatment of the wastewater there is also the option of applying anaerobic biological processes. By applying anaerobic technology a large part of the organic load in the wastewater can be removed and converted into energy-rich biogas. In addition, the anaerobic technology can be used in dairies to produce biogas from waste whey. The biogas which is generated can be used to produce electrical and/or thermal energy.
Biological wastewater treatment harnesses the action of bacteria and other microorganisms to clean waterBiological wastewater treatment is a process that seems simple on the surface since it uses natural processes to help with the decomposition of organic substances, but in fact, it’s a complex, not completely understood process at the intersection of biology and biochemistry.Biological treatments rely on bacteria, nematodes, or other small organisms to break down organic wastes using normal cellular...
Summary
Biorem`s biogas desulphurization product is providing very high removal efficiencies at a landfill site in Quebec. Despite the highly variable concentrations and low winter temperatures, the system has achieved an average removal efficiency of 97%, and has maintained outlet nydrogen sulphide concentration below target consistently. As a result, the customer has realized a significant cost reduction over the previously used chemical scrubbing process, and site environment has improved.
The biological...
For chemically enhanced primary treatment (CEPT) with microsieving, a feedback proportional integral controller combined with a feedforward compensator was used in large pilot scale to control effluent water turbidity to desired set points. The effluent water turbidity from the microsieve was maintained at various set points in the range 12–80 NTU basically independent for a number of studied variations in influent flow rate and influent wastewater compositions. Effluent turbidity was highly correlated with...
Three different sizes of powdered activated carbon (PAC) were added in hybrid anaerobic membrane bioreactors (AnMBRs) and their performance was compared with a conventional AnMBR without PAC in treating palm oil mill effluent. Their working volume was 1 L each. From the result, AnMBRs with PAC performed better than the AnMBR without PAC. It was also found that adding a relatively smaller size of PAC (approximately 100 μm) enhanced the chemical oxygen demand removal efficiency to 78.53 ± 0.66%, while the concentrati...
To lower energy consumption at a sewage treatment plant (STP), primary settling could be enhanced to direct more chemical oxygen demand (COD) to anaerobic digestion (AD) for increased biogas production and decreased aeration. Primary settling can be chemically enhanced by applying flocculation aids (FAs). FAs are refractory compounds that may affect all sludge treatment facilities. In this study the consequences are investigated of the application of FAs for chemically enhanced primary treatment (CEPT) on AD and...
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