Components and Guidance for Constructional Rearrangement of Buildings and Structures within Reorganization Cycles

Abstract. This work is aimed at providing a deep cleaning from nitrogen and phosphorus at the requirements level for a small capacity waste water treatment plants with active sludge. The wastewater treatment technology includes: mechanical screen, anaerobic reactor, anoxic reactor, two aerobic reactors with floating media, aerobic reactor, clarifier, bioreactor, purification, filter, filter of tertiary treatment with the sorbent, ultraviolet disinfection facility. The sludge treatment includes aerobic stabilizer and facility of mechanical dewatering. The developed technology ensures deep purification of household waste waters from nitrogen and phosphorus. The degree of purification in the ammonium-ion reaches of 99.5 %. Efficiency of total nitrogen removal (the sum of ammonium, nitrite and nitrate nitrogen) is 85 %. The efficiency of biological purification of phosphates is 97.8 percent that is achieved without the use of coagulant. Requirements are met in most cases.

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“…Technology correction was based on the methods of process simulation to achieve maximum use facilities' capacity [9][10][11][12].…”

Section: Methodsmentioning

confidence: 99%

Removal of nitrogen and phosphorous from domestic wastewater

Kulakov

Makisha

2017

MATEC Web Conf.

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“…On the other side tubular modules could be faster bulked with sediments (and hardly cleaned) and require greater material consumption [4,6,16]. The hydraulic mode of operation of the clarifiers has a significant impact on the effect of their work.…”

Section: Sedimentation With Thin-layer Modulesmentioning

confidence: 99%

“…The better primary sedimentation tanks work, the smaller is the amount of excessive active sludge [4,5].…”

Section: Introductionmentioning

confidence: 99%

Peculiarities of clarifiers’ reconstruction at waste water treatment plants

Makisha

Kulakov

2017

MATEC Web Conf.

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Abstract. The article reveals the ways in which the reconstruction of clarifiers for wastewater treatment plant can be performed. One of the most common method is bioflocculation that means use of corresponding properties of excess activated sludge or biofilm, which both have in its composition so called extracellular biopolymers that determine the spatial structuring and bioflocculation of cell formations. Multiple researches showed that use of surplus sludge as bioflocculant provides increased efficiency of sedimentation in any waste water up to 85-90 % and reduce biochemical oxygen demand (BOD) in the clarified water by 40-50 %. The other method to be implemented for reconstruction of clarifying facilities is thin-layer modules to raise the efficiency of settling. Thin-layer modules can be used in a wide range of capacity of sewage works. The possibility of application depends on the structural size and condition of building structures, the amount of suspended solids and other parameters.

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“…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].…”

Section: Introductionmentioning

confidence: 99%

Research for waste water treatment technology with low production of excessive active sludge

Makisha

Panteleeva

2017

MATEC Web Conf.

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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.

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Components and Guidance for Constructional Rearrangement of Buildings and Structures within Reorganization Cycles

Cited by 31 publications

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Removal of nitrogen and phosphorous from domestic wastewater

Removal of nitrogen and phosphorous from domestic wastewater

Peculiarities of clarifiers’ reconstruction at waste water treatment plants

Research for waste water treatment technology with low production of excessive active sludge

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