scholarly journals CLASSIFICATION OF SORBENTS USED IN TECHNOLOGIES FOR PURIFICATION OF WASTE WATER FROM PETROLEUM PRODUCTS

2020 ◽  
Vol 10 (3) ◽  
pp. 26-34
Author(s):  
Elena S. MALYSHKINA
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Informed Choice ◽  
Petroleum Products ◽  
Oil Products ◽  
Environmental Friendliness ◽  
Pine Sawdust ◽  
Effi Ciency ◽  
Special Algorithm

Currently, there is no a generally accepted classifi cation of the sorbents used in the technologies for wastewater treatment from oil products. The purpose of this work is to more fully systematize the sorbents used in wastewater treatment, depending on their main characteristics, as well as on the economy and environmental friendliness. Based on the existing classifi cations, the generalized classifi cation of the sorbents designed for wastewater treatment from oil products in the dissolved and emulsifi ed forms, and additionally in the fi lm form, was developed and supplemented with the new parameters. A special algorithm, that allows one to make an informed choice of the sorbent in terms of its application effi ciency, environmental protection and material costs, is formed. In this regard, as an example, the classifi cation of pine sawdust has been performed. It can be considered as an eff ective sorbent base.

Application of New Coalescence Method for Treatment of Emulsified Petroleum Products Wastewater

1991 ◽  
Vol 24 (7) ◽  
pp. 261-268 ◽  
Author(s):  
Y. P. Sedlukho
Keyword(s):  
Waste Water ◽  
Experimental Research ◽  
Quartz Sand ◽  
High Efficiency ◽  
Petroleum Products ◽  
Oil Products ◽  
Polytechnic Institute ◽  
New Method ◽  
Technological Parameters ◽  
Oil Emulsions

The problems of applying new method of coalescence of emulsified oil products on the surface of hydrophobic filtering materials during purification of oil-containing waste water are discussed. The results of some theoretical and experimental research are listed. During the research granulated polymers (polyethylene, polypropylene) and hydrophobic quartz sand were used as filtering materials. The research reveals the fundamental processes which are occurring. The main principles of technological computation as well as those of designing installations and separate elements of installations are worked out. The paper shows that it is possible to achieve rather a high efficiency of separating water/oil emulsions if filtering materials and technological parameters are selected properly. The paper is based on the results of recent research carried out under the guidance of the author at the Novopolotsk Polytechnic Institute.

scholarly journals NUOTEKŲ VALYMO SORBENTAIS TYRIMAS / RESEARCH OF WASTEWATER TREATMENT WITH SORBENTS

2019 ◽  
Vol 11 (0) ◽  
pp. 1-6
Author(s):  
Karina Subatkevičienė ◽  
Ina Tetsman ◽  
Justinas Gargasas
Keyword(s):  
Waste Water ◽  
Adsorption Capacity ◽  
Raw Materials ◽  
Experimental Studies ◽  
Petroleum Products ◽  
Oil Products ◽  
Maximum Adsorption Capacity ◽  
Chemical Cleaning ◽  
Tire Rubber ◽  
Cleaning Methods

One of the largest industrial waste water pollutants is petroleum products. The most widely used physico-chemical cleaning methods (use of sorbents) are used for cleaning them, but the main difficulty is the selection of suitable sorbents (different according to their origin and structure) and maintenance of op-tidal treatment facilities. The production of sorbents from secondary raw materials reduces the amount of waste and, at the same time, protects nature against hazardous materials, for example from used car tires. Three different sorbent species (organic organic sorbents – branched lead, synthetic sorbents – zeolites, sorbents made of atrium raw materials – crushed used tires) have been evaluated and compared. The changes in the concentrations of oil products in the wastewater before and after treatment procees were evaluated and compared. The initial concentration of oil products in waste water was 0.25 mg/m3. Experimental studies show that the maximum adsorption capacity is 2.90 g/g (fraction 1.00−1.50 mm) of zeolite 2.55 g/g (fraction 2 mm), and 1.97 g/g The crushed tire rubber (fraction 1.00−1.50 mm) has adsorption capacity similar to that of a trimmer. The efficiency of the separa-tion of ceolite (fraction 2.00 mm) ranged from 87.51% to 96.11%, and the straw burners from 91.30% to 94.55%, and the crushed tire rubber shavings (fraction 1.00−1, 50 mm), the purification efficiency ranged from 91.51% to 95.21%.

scholarly journals WATER PURIFICATION WITH NATURAL SORBENTS

2019 ◽  
pp. 188-200 ◽  
Author(s):  
E. S. Malyshkina ◽  
E. I. Vyalkova ◽  
E. Yu. Osipova
Keyword(s):  
Wastewater Treatment ◽  
Water Purification ◽  
Industrial Waste ◽  
Raw Materials ◽  
Correlation Coefficients ◽  
Petroleum Products ◽  
Exchange Capacity ◽  
Raw Material ◽  
Treatment Technology ◽  
Pine Sawdust

Industrial waste can be considered as technological and economical raw materials in related industries, and their disposal in compliance with environmental legislation can be environmentally efficient. Nowadays, researchers search for an effective but relatively cheap absorption material to extract various contaminants from water. Of great greatest interest are the industrial waste that can be used in wastewater treatment technology as a secondary raw material. As a rule, active coals are used in drinking water systems and deep wastewater treatment. In the Tyumen region, this type of sorbent is quite expensive, since there are no natural coal deposits. The sawdust sorbent is proposed to applied as fuel briquettes. The sorption properties of the modified pine sawdust in relation to oil products are studied herein. The correlation analysis is carried out for each type of sorbent exposure. The solution regression and correlation coefficients are calculated. The obtained equations of regression are used to construct absorption isotherms characterizing the dependence of sorption capacity on the concentration of petroleum products in the solution. The sorption activity of sawdust increases by 1.4–4 times depending on the type of modification and intensification. It is shown that the total exchange capacity of pine sawdust on the model solution is only 19.4% lower than the that of activated carbon, which is very expensive for the Tyumen region. In the case of sawdust used for water purification, two environmental problems are solved simultaneously: cheap and effective cleaning of oil-saturated surface runoff and recycling of wood waste.

scholarly journals ANALYSIS OF FACTORS AFFECTING PRICING IN THE OIL MARKET

2018 ◽  
Vol 1 (12) ◽  
pp. 258-262
Author(s):  
Yuliya Zarubina
Keyword(s):  
Supply And Demand ◽  
Petroleum Products ◽  
Oil Products ◽  
Subjective Character ◽  
Factors Affecting ◽  
Oil Market ◽  
Main Factors

The article considers, systematizes and analyzes the main factors affecting the price of petroleum products. Classification of factors with allocation of factors of supply and demand, factors of objective and subjective character is offered. Seasonality factor are analyzed. The modern tendencies of the market of oil products are defined

Improvement of the biotechnology of wastewater treatment from livestock and poultry farms

2020 ◽  
pp. 13-19
Author(s):  
O. R. Ilyasov ◽  
S. N. Koshelev ◽  
V. S. Khomyakova ◽  
O. A. Sherstyuchenko
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
New Technology ◽  
Methodological Approach ◽  
Water Discharge ◽  
Modern Science ◽  
Free Water ◽  
Environmental Friendliness ◽  
Catchment Areas ◽  
Poultry Farms

Search and development of non-waste and environmental technology solutions of bioconversion of manure and waste water, providing extraction of valuable nutrients additional feed for livestock and poultry, as well as allowing to reduce (or eliminate) the discharge of wastewater into the environment is an important direction of development of modern science, which is of crucial economic and social importance. The purpose of the research was to improve the biotechnology of wastewater treatment from livestock and poultry farms. The problem of protection of water objects from contamination by surface wastewater from the catchment area of livestock and poultry farms has been considered by the authors of the article. A new methodological approach to protecting the environment from waste pollution consists in minimizing wastewater discharges to theoretically achievable limits; using drinkingquality water exclusively to ensure technical and sanitary conditions for the normal functioning of livestock farms; full utilization of off -balance water directly at the farms. The implementation of the strategic goal should be translated into a waste-free water supply for all enterprises in the industry. No waste water discharge – there is no problem of land and water contamination. A new technology has been developed for the treatment of manure-containing and litter-containing waste water. The researches has been confi rmed the possibility of using modern biotechnologies for the treatment of contaminated wastewater from livestock and poultry farms. The use of an accumulative phytofi lter is an eff ective method of protecting water ecosystems from contamination by surface wastewater from catchment areas of livestock and poultry farms. The proposed construction provides not only environmental friendliness of the technology, but also naturally fi ts into the landscape of the area.

Equipment dentifying Vapor Leakages and Recovery of Petroleum Product Vapor When Stored

2020 ◽  
Vol 05 ◽  
pp. 60-64
Author(s):  
Y.N. Rybakov ◽  
◽  
V.E. Danilov ◽  
I.V. Danilov ◽  
◽  
...  
Keyword(s):  
Environmental Pollution ◽  
Environmental Protection ◽  
Petroleum Product ◽  
Petroleum Products ◽  
Oil Products ◽  
Carnot Cycle ◽  
Oil Supply ◽  
Gas Stations ◽  
Environmental Situation ◽  
Vapor Absorption

The problem of losses of oil products from leaks during their storage and transportation at oil supply facilities is considered. The influence of oil product leaks on the environmental situation around oil depots and gas stations is shown. A detailed overview of existing methods and tools for detecting leaks of petroleum products from storage facilities is presented. The evaluation of their effectiveness. Two methods for detecting oil leaks and devices based on them are proposed. The first device monitors the movement of liquid in the tank, the second-detects petroleum products in wastewater. The problem of recovery of petroleum vapors and environmental pollution from the release of vapors of light fractions into the atmosphere is also considered. An overview of existing methods and means of recovery of petroleum vapors is presented. Two methods and devices for capturing oil vapors and returning them to the reservoir are proposed, based on different principles: vapor absorption in the cooled oil product and vapor recovery on the principle of the Carnot cycle. It is shown that these devices can provide effective detection of oil leaks and recovery of their vapors, as well as improve the effectiveness of environmental protection at modern gas stations and tank farms.

DESIGN PLANNING WASTEWATER TREATMENT PLANT OF NATA DE COCO INDUSTRY WITH THE ACTIVATED SLUDGE PROCESS

2016 ◽  
Vol 9 (2) ◽  
Author(s):  
Dinda Rita K. Hartaja ◽  
Imam Setiadi
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Activated Sludge ◽  
Waste Water Treatment ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Appropriate Technology ◽  
Waste Water Treatment Plant ◽  
Activated Sludge Process ◽  
High Level

Generally, wastewater of nata de coco industry contains suspended solids and COD were high, ranging from 90,000 mg / l. The high level of of the wastewater pollutants, resulting in nata de coco industry can not be directly disposed of its wastewater into the environment agency. Appropriate technology required in order to process the waste water so that the treated water can meet the environmental quality standards that are allowed. Designing the waste water treatment plant that is suitable and efficient for treating industrial wastewater nata de coco is the activated sludge process. Wastewater treatment using activated sludge process of conventional (standard) generally consists of initial sedimentation, aeration and final sedimentation.Keywords : Activated Sludge, Design, IPAL

scholarly journals Deep learning-based morphology classification of activated sludge flocs in wastewater treatment plants

2021 ◽  
Author(s):  
Hisashi Satoh ◽  
Yukari Kashimoto ◽  
Naoki Takahashi ◽  
Takashi Tsujimura
Keyword(s):  
Wastewater Treatment ◽  
Deep Learning ◽  
Activated Sludge ◽  
Morphological Change ◽  
Wastewater Treatment Plants ◽  
Filamentous Bacteria ◽  
Sludge Flocs

A deep learning-based two-label classifier 1 recognized a 20% morphological change in the activated flocs. Classifier-2 quantitatively recognized an abundance of filamentous bacteria in activated flocs.

Development of the Acidic Mining Wastewater Treatment Technology

2013 ◽  
Vol 295-298 ◽  
pp. 1372-1375 ◽  
Author(s):  
Guang Wei Liu ◽  
Run Cai Bai
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Acid Mine Drainage ◽  
Mine Drainage ◽  
Mining Waste ◽  
Formation Condition ◽  
Research Development ◽  
Treatment Technology ◽  
Acid Mine ◽  
Mining Wastewater

The main formation condition and harmfulness of the acidic mining waste water's were analyzed in this paper. The treatment technology of the acid mine drainage's was briefly introduced. The research development of acid mine drainage was summarized in recent years. It was the fact that developing the efficient, cheap, safe and easy treatment technology of acid mine should be necessary and inevitably and some success management experiences of acidic waste water were applied in acidic mining wastewater.

Water reuse for irrigation from waste water treatment plants with seasonal varied operation modes

2004 ◽  
Vol 50 (2) ◽  
pp. 47-53 ◽  
Author(s):  
P. Cornel ◽  
B. Weber
Keyword(s):  
Waste Water ◽  
Wastewater Treatment ◽  
Water Treatment ◽  
Treatment Process ◽  
Waste Water Treatment ◽  
Treated Wastewater ◽  
Nitrifying Bacteria ◽  
Water Treatment Plants ◽  
Operation Modes ◽  
Waste Water Treatment Plants

Irrigation periods are usually limited to vegetation periods. The quality requirements for treated wastewater for disposal and for reuse are different. The reuse of water for irrigation allows partly the reuse of the wastewater's nutrients (N and P). Outside the irrigation period the water must be treated for disposal, thus nutrient removal is often required in order to avoid detrimental effects on the receiving surface water body. Only wastewater treatment plants with different operation modes for different seasons can realise these requirements. The nitrification is the most sensitive biological process in the aerobic wastewater treatment process. At low water temperatures the nitrifying bacteria need several weeks to re-start full nitrification after periods without NH4-removal. Therefore it is necessary to develop options for waste water treatment plants which allow a fast re-start of the nitrification process. Based on theoretical considerations and computer simulations of the activated sludge treatment process, one possibility for implementing a wastewater treatment plant with different seasonal operation modes is evaluated.

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