wastewater

The Effectiveness of Zeolite for The Removal of Heavy Metals From an Oil Industry Wastewater

Batch experiments are applied to determine the effectiveness of zeolite addition on the characteristics of wastewater of the oil industry and operational factors. The concentrations of heavy metals were measured using an atomic absorption spectrophotometry. Results have shown that 2.5 g/L of zeolite at a speed of 270 rpm, 6.5 pH would result in about 99% removal efficiency.

INVESTIGATION OF THE PROCESS OF Fe (III) ADSORPTION BY METHODS OF MULTIDIMENSIONAL CLUSTER ANALYSIS

The results of the study of the adsorption capacity of a number of sorbents of natural and synthetic origin with respect to iron ions have been clustered. The sorption capacity of the following sorbents was studied: natural zeolite of the Sokyrnytsia deposit, synthetic sorbent based on the ash of Doborotvir heat power plant, Al2O3, SiO2, as well as some types of soils: sandy soil, black soil and clay. Equations describing the regularities of adsorption processes depending on the type of sorbent are obtained.

INNOVATIVE METHOD OF NITRIFICATION AND DENITRIFICATION ON THE EXAMPLE OF WASTEWATER TREATMENT PLANT OF KOLOMYIA

The article is devoted to the unsatisfactory operation of biological wastewater treatment plants. At present in Ukraine there are no developments of equipment and devices to ensure the operation of treatment facilities using the technology of nitridenitrification of deep wastewater treatment from nitrogen and phosphorus compounds. The analysis of the equipment of biological treatment systems - nitri treatment plant - denitrifier, clarifier tanks is carried out. At the same time, the standards of the degree of purification of both Ukraine and the European Union were taken into account.

СHOICE OF THE EFFICIENT FLOW DIAGRAM OF BIOLOGICAL WASTEWATER TREATMENT AT MUNICIPAL WASTEWATER TREATMENT PLANTS

The possibility of increasing the efficiency of municipal wastewater treatment plant (WWTP) operation by changing the flow diagram of biological wastewater treatment in aeration tanks at minimum expenses for their reconstruction is shown in the paper on the example of one of the regional centres of Ukraine. The technology of nitri-denitrification of wastewater according to the flow diagram of the two-stage modified Ludzak-Ettinger process is offered for the considered conditions.

Рredominant microflora of natural and wastewaters of lviv region

Quantitative and qualitative composition of microorganisms have been determined by the microbiological methods of the analysis of natural waters and industrial wastewater. It is shown that the dominant microflora of the studied waters are Diplococcus, Sarcina, Bacillus, Pseudomonas bacteria types, blue-green algae of Oscillatoria types, as well as Saccharomyces yeast types. Morphological, physiological and cultural characteristics of colonies grown on nutrient media were studied to identify microorganisms.

INVESTIGATION OF THE PROCESS OF AMMONIUM ION ADSORPTION BY NATURAL AND SYNTHETIC SORBENTS BY METHODS OF MULTIDIMENSIONAL CLUSTER ANALYSIS

The results of the research of the adsorption capacity of a number of sorbents of natural and synthetic origin for ammonium ions have been clustered. The natural zeolite of the Sokyrnytsia deposit, a synthetic sorbent based on the fly ash of Dobrotvir state district heat power plant, Al2O3, SiO2, as well as some types of soil: sandy soil, black soil, and clay were used in the research. Equations describing the regularities of adsorption processes depending on the type of sorbent were obtained. According to the obtained dendrograms, two main clusters of sorbents were identified.

ECOLOGICAL PROBLEMS OF ENTERPRISES OF ALCOHOL INDUSTRY

The issue of industrial water treatment and food waste disposal is particularly relevant, especially for the alcohol industry. The problem of wastewater treatment and waste accumulation in the process of alcohol production is due to high chemical and biological oxygen demand, specific colour and odour, a large number of suspended substances, low pH. Therefore, the choice of promising wastewater treatment technologies is of paramount importance to ensure the ecological safety of the environment.

Application of Liquid Extraction for Treatment of Wastewater from Edible Oils Production

The structure of an emulsion formed in wastewater from edible oils production has been investigated. The type of emulsifier has been determined and the method of emulsion destruction has been proposed, providing further quality treatment of wastewater via liquid-extraction method. The resulting equilibrium and operating lines of the process were received. The number of transfer stages has been determined. The mathematical model of liquid-extraction wastewater treatment was built.

IMPACT OF RIVERBANK ANTHROPOGENIC POLLUTION SOURCES ON THE FORMATION OF RIVER WATER QUALITY

The method of estimation of the impact of riverbank anthropogenic pollution sources on the formation of river water quality is proposed. A description of the influence of housing and utility providers on water bodies within Mykolaiv region is
made. The obtained results can be applied in the development of measures aimed at improvement of the ecological situation in the area under study.

 

CAVITATION WASTEWATER TREATMENT OF OIL-FAT FACTORY FROM ORGANIC CONTAMINATION IN THE PRESENCE OF THE GASES OF DIFFERENT NATURE

Oil-fat industry produces and recycles vegetable fats and related products. Sewage of this industry contain a large number of pollutants different nature. But, the main contaminating components of this sewage are organic compounds, mainly fatty character. Existing methods of water purification are not capable of providing sufficient degree of wastewater treatment, which would comply established sanitary norms. It’s creates a big problem, because it’s cause pollution of surface waters with organic compounds. Solving this problem is possible when switching to closed water systems.