Analysis of the criteria of technological and technocal-economic effectiveness of design choices

10.12737/4856 ◽  
2014 ◽  
Vol 8 (4) ◽  
pp. 102-116
Author(s):  
Владимир Лебедев ◽  
Vladimir Lebedev ◽  
Елена Крымская ◽  
Elena Krymskaya ◽  
Александр Анидалов ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Wastewater Treatment ◽  
Economic Effectiveness ◽  
Biological Wastewater Treatment ◽  
Aerobic Treatment ◽  
Local Systems ◽  
Biological Sludge ◽  
Private Housing ◽  
Simulation Results ◽  
Wastewater Treatment Systems

The authors of the article consider a number of numerical simulation results as well as computation results pertaining to the relative mechanical-economic effectiveness of design choices, local systems of biological wastewater treatment utilized by small-size residential estates, private housing and service enterprises. The authors have developed assessment criteria for technical and comparative technical-economic effectiveness of wastewater treatment systems on the basis of alternating aerobic-treatment machines utilizing biological sludge, and have applied the criteria to a simulation model.

Bacteriophage ecology in biological wastewater treatment systems

2021 ◽  
Author(s):  
Ruyin Liu ◽  
Zong Li ◽  
Ganghua Han ◽  
Shujuan Cun ◽  
Min Yang ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Biological Wastewater Treatment ◽  
Wastewater Treatment Systems

scholarly journals Applicability of biological wastewater treatment for various industries

2021 ◽  
Vol 941 (1) ◽  
pp. 012001
Author(s):  
Basamykina Alena ◽  
Kurkina Ekaterina ◽  
Kameristaya Maria
Keyword(s):  
Organic Matter ◽  
Wastewater Treatment ◽  
Organic Matter Content ◽  
Oxygen Demand ◽  
Anaerobic Treatment ◽  
Matter Content ◽  
Biological Wastewater Treatment ◽  
Aerobic Treatment ◽  
Total Organic Matter ◽  
Inorganic Substances

Abstract Biological treatment methods are used to remove organic and some inorganic substances from wastewater using the simplest organisms that use these substances for nutrition, breaking them down using cellular processes. The article deals with the aerobic, anaerobic and anoxic stages of biological wastewater treatment. Their differences are explained and the best way to use biological processes is analyzed according to the type of industry/production. At wastewater treatment plants, anaerobic treatment is often used at first to remove a significant part of organic substances from wastewater before sending them for further aerobic treatment. Aerobic treatment is effective for various types of wastewater, especially with lower biochemical oxygen demand (BOD) and chemical oxygen demand (COD). A comparative analysis of wastewater composition from food, oil and gas processing, pharmaceutical and pulp and paper industries was carried out. In the presence of organic compounds, the technology is chosen depending on the total organic matter content or the total COD content, which characterizes the total organic matter in water. A combination of anaerobic and aerobic methods is possible, if a discharge into the sewer system or into water bodies is required. The grounds for the application of biological wastewater treatment of these industries are given.

Biological Wastewater Treatment Systems

2008 ◽  
pp. 426-441 ◽  
Author(s):  
M. Pell ◽  
A. Wörman
Keyword(s):  
Wastewater Treatment ◽  
Biological Wastewater Treatment ◽  
Wastewater Treatment Systems

scholarly journals Comammox Functionality Identified in Diverse Engineered Biological Wastewater Treatment Systems

2018 ◽  
Vol 5 (2) ◽  
pp. 110-116 ◽  
Author(s):  
Medini K. Annavajhala ◽  
Vikram Kapoor ◽  
Jorge Santo-Domingo ◽  
Kartik Chandran
Keyword(s):  
Wastewater Treatment ◽  
Biological Wastewater Treatment ◽  
Wastewater Treatment Systems

A conceptual model describing macromolecule degradation by suspended cultures and biofilms

1998 ◽  
Vol 37 (4-5) ◽  
pp. 231-234 ◽  
Author(s):  
David R. Confer ◽  
Bruce E. Logan
Keyword(s):  
Wastewater Treatment ◽  
Bovine Serum Albumin ◽  
Hydrolytic Activity ◽  
Bulk Solution ◽  
Biological Wastewater Treatment ◽  
Limited Information ◽  
Fixed Film ◽  
Suspended Cultures ◽  
Macromolecule Degradation ◽  
Wastewater Treatment Systems

Macromolecular (> 1,000 daltons) compounds such as proteins and polysaccharides can constitute a significant portion of dissolved organic carbon (DOC) in wastewater, but limited information is available on how these compounds are degraded in suspended and fixed-film biological wastewater treatment systems. Bacteria cannot assimilate intact macromolecules but must first hydrolyze them to monomers or small oligomers. Here, we summarize experiments performed in our laboratory which indicate that the enzymes responsible for hydrolysis are primarily those that remain attached to the cell. In biofilm cultures fed macromolecular substrates, for example, no more than 8% of total hydrolytic activity was found to be located in the cell-free bulk solution. These and other experiments support a generalized mechanism for macromolecule degradation by biofilms that features cell-associated hydrolysis, followed by the release of hydrolytic fragments back into bulk solution. The extent of fragment release is larger for proteins (bovine serum albumin) than for carbohydrates (dextrans).

scholarly journals “Protein” Measurement in Biological Wastewater Treatment Systems: A Critical Evaluation

2016 ◽  
Vol 50 (6) ◽  
pp. 3074-3081 ◽  
Author(s):  
Chencheng Le ◽  
Chinagarn Kunacheva ◽  
David C. Stuckey
Keyword(s):  
Wastewater Treatment ◽  
Critical Evaluation ◽  
Biological Wastewater Treatment ◽  
Protein Measurement ◽  
Wastewater Treatment Systems
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