Abstract
The article reflects the possibility to create a technological scheme of waste water treatment of domestic and similar type of sewage within minimal amount of excessive active sludge by means of bioreactors with immobilized feed. There are various aspects to be considered: technical, economic, social and ecological. According to the above it is strongly needed to provide a combination of proper waste water treatment, minimal sludge formation and the possibility for a further use of the sludge. One of the ways to achieve the goal above is to use an immobilized feed in the aeration tank. The necessary experiments were carried out in the department of waste water treatment and water ecology. The article includes the scheme of the facility and other parameters of the experiments, which has been carried. The combination of aerobic and anaerobic processes helps to provide proper quality of integrated biological treatment. Chambers of the aeration reactor were also equipped with the polymer feed of various structures. The sludge treatment that was also strongly needed was made by means of aerobic stabilization with the use of ejecting aeration. The results of experiment showed a good effect in both components – sewage and sludge treatment. Afterwards there was also an industrial model launched which confirmed the results of the previous stage.
Highlights
The intensive growth of housing construction and the revival of industry caused systematic increase of emissions of all kinds of waste industrial, agricultural and domestic origin, capturing more and more vital space, causing irreparable damage to human health
Further presence of people in the contaminated areas may result in disturbances in the reproductive sphere and the birth of physically and mentally defective offspring [1,2]
In connection with the above circumstances, modern science faces many challenges in the field of water supply and sanitation, which mean new technologies development for treatment of household and similar to them by composition industrial wastewater, which would comply to the following conditions: -quality of treated wastewater that meets modern standards (BOD, nitrogen and phosphorus compounds etc.). -production a minimum amount of excessive sludge; -use of the produced sludge as fertilizer or other means of facilitating its disposal; -the compactness of treatment facilities and their area reduction
Summary
The intensive growth of housing construction and the revival of industry caused systematic increase of emissions of all kinds of waste industrial, agricultural and domestic origin, capturing more and more vital space, causing irreparable damage to human health. Social and environmental aspect means catastrophic extension of the areas for storage of sludge, which leads to contamination of air, soil, surface and ground waters by pathogenic bacteria due to long-term and permanent accumulation and storage. It has a very adverse effect on the health of humans and animals and may lead to new epidemics and serious genetic changes [6,7,8,9,10]. In connection with the above circumstances, modern science faces many challenges in the field of water supply and sanitation, which mean new technologies development for treatment of household and similar to them by composition industrial wastewater, which would comply to the following conditions: -quality of treated wastewater that meets modern standards (BOD, nitrogen and phosphorus compounds etc.). -production a minimum amount of excessive sludge; -use of the produced sludge as fertilizer or other means of facilitating its disposal; -the compactness of treatment facilities and their area reduction
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