scholarly journals WASTEWATER TREATMENT WITH BIOCONVERSION FOR MOTOR FUEL PRODUCTION

ScienceRise ◽  
2020 ◽  
pp. 66-72
Author(s):  
Sergii Shamanskyi ◽  
Sergii Boichenko ◽  
Lesia Pavliukh
Keyword(s):  
Wastewater Treatment ◽  
Culture Medium ◽  
Motor Fuel ◽  
Biofuel Production ◽  
Phosphorus Compounds ◽  
Biogenic Elements ◽  
Fuel Production ◽  
Nitrogen And Phosphorus ◽  
Phosphorous Compounds ◽  
Technological Product

The object of research: the process of wastewater treatment using bioconversion for subsequent motor fuel production. Investigated problem: improving the efficiency of bioconversion process for biofuel production with simultaneous wastewater treatment by removing nitrogen and phosphorous compounds. The main scientific results: providing the possibility of biofuel production with energy and economic inefficiency. It is done by combining the process of motor biofuel production with the process of treating wastewater from biogenic elements makes it perspective for commercial use. Traditional technology for the production of motor biofuels from microalgae includes cultivation, harvesting, dehydration and drying of biomass, extraction of oils from them and subsequent production of methyl esters and glycerol. Such technology is often not economically effective. It requires significant amount of energy for carrying out all necessary processes. In addition, it requires significant expenditures of water and nutrients. The use of nutrient-rich wastewater as a culture medium for the cultivation of microalgae allows not only to reduce costs, but also to purify wastewater from nitrogen and phosphorus compounds, which makes this process economically effective. The area of practical use of the research results: Sewage and gray water treatment plants. Industrial and agricultural effluents treatment plants. Different types of enterprises, which have wastewater enriched with nitrogen and phosphorous compounds. Innovative technological product: The technology of microalgae cultivation using wastewater as a culture medium. The technology allows effectively purifying used wastewaters from nitrogen and phosphorous compounds with no waste at the end. Scope of the innovative technological product: Improved technology of motor biofuel production with simultaneous wastewater purification, which is economically effective and environmentally safe.

scholarly journals Evaluation of the potential of commercial use of microalgae in the world and in Ukraine

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Lesia Pavliukh ◽  
Sergii Shamanskyi ◽  
Sergii Boichenko ◽  
Artur Jaworski
Keyword(s):  
Experimental Study ◽  
Wastewater Treatment ◽  
Experimental Studies ◽  
Biofuel Production ◽  
Phosphorus Compounds ◽  
Commercial Application ◽  
Biogenic Elements ◽  
Content Type ◽  
Commercial Use ◽  
The Impact

Purpose This paper aims to evaluate of the microalgae potential for commercial application, in particular to conduct experimental study of biogenic compounds removal from sewage waters by microalgae, and to calculate economical benefits from biofertizers and biofuel production. Design/methodology/approach Experimental study in the concentration change of nitrogen and phosphorus compounds in the cultivation of Chlorella Vulgaris microalgae in various types of sewage water was carried out. Findings The efficiency wastewater treatment by microalgae was confirmed. The economic benefit from the biomass utilization as biofuel production was calculated. Practical implications Implementation of wastewater treatment technology with biomass recycling for biofuel and biofertilizers production will minimize the impact on the environment. Originality/value As a results of experimental studies, the ability of microalgae to reduce biogenic elements in wastewater was confirmed. Microalgae can be used both for wastewater treatment to biogenic elements removal, such as phosphorous and nitrogen compounds, and biofuel, biofertilizers production. Prospects of the commercial use of microalgae are obvious. They are specially adapted to an environment dominated by viscous forces.

scholarly journals PERSPECTIVES OF MEMBRANE BIOREACTORS FOR WASTEWATER PURIFICATION FROM WASTE OF PHARMACEUTICAL PRODUCTS AND BIOGENIC ELEMENTS

2018 ◽  
pp. 31-40 ◽  
Author(s):  
M.S. Boichenko ◽  
O.O. Vovk ◽  
S.V. Boichenko ◽  
S.I. Shamanskyi
Keyword(s):  
Wastewater Treatment ◽  
Negative Impact ◽  
Renewable Energy Sources ◽  
Pharmaceutical Products ◽  
Membrane Bioreactors ◽  
Water Bodies ◽  
Phosphorus Compounds ◽  
Biogenic Elements ◽  
Human Beings ◽  
Nitrogen And Phosphorus

The article analyzes modern methods of wastewater treatment from bioresistant pharmaceutical products and biogenic elements. Pharmaceuticals, such as anti-inflammatory drugs, analgesics, antibiotics, narcotic drugs, hormones, drugs that reduce cholesterol,etc., are often get into sewage in small quantities. They are hardly biodegradable and, passing through wastewater treatment plants without any changes, they often end up in water bodies. They have significant negative impact on aquatic ecosystems and human health, while being present in open waters even in small quantities. Among the nutrients that are also present in the wastewater, nitrogen and phosphorus compounds deserve the greatest attention. While getting into water bodies, they cause eutrophication, which isalso dangerous to ecosystems and human beings. It is shown that among modern variety of purification methods, the most suitable for removal of pharmaceutical products and biogenic elements are biochemical methods and photopurification technologies, as well as using membrane bioreactors. Biosorption-membrane methods open the possibility to use modern biotechnologies for efficient removal of bioresistant xenobiotics and reducing their negative impact on natural environment. Using photopurification technologies can help to reduce amount of nutrients discharged in surface water bodies, thus reducing their potential for eutrophication, as well as receiving additional renewable energy sources. Bibl. 30, Fig. 3, Tab. 4.  

scholarly journals Effectiveness of wastewater treatment from the fruit and vegetable industry in the vertical flow-type constructed wetlands

2018 ◽  
Vol 44 ◽  
pp. 00149 ◽  
Author(s):  
Monika Puchlik
Keyword(s):  
Wastewater Treatment ◽  
Organic Compounds ◽  
Constructed Wetlands ◽  
Total Nitrogen ◽  
Organic Substance ◽  
Treatment Plant ◽  
Phosphorus Compounds ◽  
Vertical Flow ◽  
Fruit And Vegetable ◽  
Nitrogen And Phosphorus

The purpose of the work was to determine the effectiveness of wastewater treatment from the fruit and vegetable industry in constructed wetlands supported by a bio-preparation. An increase in the efficiency of organic substance purification expressed as BOD5 and COD by 8% in deposit with the addition of bio-preparation in relation to the control bed (without the addition of bio-preparation), was found. The efficiency of the total suspension, total nitrogen and total phosphorus increased respectively by 19.5%, 10%, and 27% in relation to the bed without addition of bio-preparation. Constructed wetlands treatment plant ensures high removal of organic compounds expressed as BOD5 and COD, as well as guarantees reduction in the concentration of nitrogen and phosphorus compounds.

Evaluation of total nitrogen pollution reduction strategies in a river basin: a case study

2001 ◽  
Vol 44 (6) ◽  
pp. 55-62 ◽  
Author(s):  
A. Droic ◽  
J. Zagorc-Končan ◽  
M. Cotman
Keyword(s):  
Wastewater Treatment ◽  
River Basin ◽  
Total Nitrogen ◽  
Nitrogen Pollution ◽  
Point Sources ◽  
Pollution Reduction ◽  
Phosphorus Compounds ◽  
Nitrogen And Phosphorus ◽  
Nitrate Accumulation

The enrichment of groundwater and rivers by nutrients (nitrogen and phosphorus compounds) and their consequences is one of the most severe problems across Europe as well in Slovenia. Transfer of nutrients from different sources into the environment causes eutrophication of surface waters, nitrate accumulation in groundwater, and others. In this paper, the methodology of the material flow analysis is presented and applied to develop a nitrogen balance in a river basin and to evaluate different scenarios for total nitrogen pollution reduction. Application of the methodology is illustrated by means of a case study on the Krka river, Slovenia. Different scenarios are to be considered: the present level of sewerage and treatment capacities, different stages of wastewater treatment and management of agricultural activities on land. The results show that beside effluents from wastewater treatment plants, agriculture contributes significantly to the total annual nitrogen load. Beside reduction of point sources by means of wastewater collection and implementation of nutrient removal technology, managing agricultural nitrogen in order to protect river water quality and drinking water supply should become a major challenge in the Krka river basin.

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

2021 ◽  
Vol 2021 (2) ◽  
pp. 7-16
Author(s):  
Ihor Popadiuk ◽  
◽  
Ivan Matlai ◽  
Bohdan Pitsyshyn ◽  
Taras Sydor ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Phosphorus Compounds ◽  
Biological Wastewater Treatment ◽  
The European Union ◽  
Nitrogen And Phosphorus ◽  
Oxygen Conditions ◽  
Treatment Facilities ◽  
Degree Of Purification

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. On the example of treatment facilities in Kolomyia, Ivano-Frankovsk region, modern schemes of biological wastewater treatment for the removal of nitrogen and phosphorus have been proposed, namely, the re-equipment of single-corridor aerotanks into bioreactors of nitridenitrifiers by creating zones with different oxygen conditions in their volume.

scholarly journals On the issue of the feasibility of using modern technologies for biological phosphorus removal in low-capacity wastewater treatment plants

2021 ◽  
Vol 937 (4) ◽  
pp. 042054
Author(s):  
Ivan Kulik ◽  
Elena Shuckaya
Keyword(s):  
Wastewater Treatment ◽  
Phosphorus Removal ◽  
Wastewater Treatment Plants ◽  
Phosphorus Compounds ◽  
Biogenic Elements ◽  
Biological Phosphorus Removal ◽  
Basic Principles ◽  
Biological Removal ◽  
Treatment Facilities ◽  
Biological Phosphorus

Abstract The article discusses the basic principles of wastewater treatment from biogenic elements, provides the necessary conditions for the biological removal of phosphorus compounds. The technology of pre-fermentation of the sediment of primary sedimentation tanks, options for its design, the main parameters of the process are described. Specific aspects of the operation of low-capacity wastewater treatment facilities are indicated and the expediency of using the technology of biological phosphorus removal in them is considered.

scholarly journals Modelling of Transformation Features for Nitrogen and Phosphorous Compounds in the conditions of the Novosibirsk Reservoir

2020 ◽  
pp. 87-102
Author(s):  
Keyword(s):  
Water Area ◽  
Phosphorus Compounds ◽  
Reservoir Modeling ◽  
Model Description ◽  
State Variables ◽  
Nitrogen And Phosphorus ◽  
Novosibirsk Reservoir ◽  
Shallow Water Area ◽  
Tool Set ◽  
Phosphorous Compounds

The article presents a model description of spatially inhomogeneous features for the ecosystem of the Novosibirsk reservoir, the largest in Western Siberia, based on the reproduction of biogeochemical cycles of limiting elements. We have formulated the model tool set for studying quantitative and qualitative changes in the state variables of water bio/geo/cenosis. To obtain an adequate picture of environmental processes occurring in various parts of the reservoir modeling of the transformation features of nitrogen and phosphorus compounds in the waters of the Novosibirsk reservoir was performed in the box approximation. Phytoplankton biomass in a relatively shallow water area significantly exceeds concentrations in the deep-water and near-dam parts of the reservoir. A detailed dynamic picture of the variability of the content of pollutants, as well as oxygen, normalized by maximum permissible values, in the water areas of the reservoir is reproduced.The estimates obtained during the simulation generally correspond to the observed data. This study can serve as a basis for developing a model approach to monitoring and management of ecosystem processes in the Novosibirsk reservoir.

scholarly journals ANALYSIS OF THE EFFICIENCY OF WASTEWATER REMEDIATION TECHNOLOGIES USING MICROALGAE

ScienceRise ◽  
2020 ◽  
pp. 13-18
Author(s):  
Inna Nezbrytska ◽  
Sergii Shamanskyi ◽  
Sergii Boichenko ◽  
Galyna Kharchenko ◽  
Lesia Pavliukh
Keyword(s):  
Surface Water ◽  
Industrial Wastewater ◽  
Toxic Elements ◽  
Water Bodies ◽  
Raw Material ◽  
Organic Fertilizers ◽  
Phosphorus Compounds ◽  
Biogenic Elements ◽  
Wastewater Remediation ◽  
Technological Product

The object of research: the technology of wastewater remediation. Investigated problem: improving the efficiency of biogenic and toxic elements removal from different types of wastewater and reducing the amount of waste in the removal process. The main scientific results: Possible strains of microalgae, which have ability to absorb biogenic and toxic elements during their metabolism, are identified. It is shown that the use of microalgae is a promising method of wastewater remediation due to their wide availability, the ability to reduce pollution to the established maximum allowable discharge into reservoirs and the ability to accumulate high biomass, which can serve as raw material for industrial products. In particular, Oscillatoria spp. effectively removes chromium, Chlorella vulgaris effectively removes cadmium, copper and zinc, Chlamydomonas spp. effectively removes lead, Euglena gracilis effectively removes nitrogen and phosphorus compounds. It is also shown that the most effective way to solve the problem of restoring the biomass of algae obtained in wastewater is to use immobilized cell systems. The use of immobilized systems can also increase the resistance of cells and the rate of their removal of various pollutants and xenobiotics from wastewater. The area of practical use of the research results: Municipal enterprises for domestic and surface wastewater treatment. Enterprises for the treatment of industrial effluents. Enterprises for biomass processing, production of motor fuels, biogas, organic fertilizers. Innovative technological product: The technology of remediation of domestic, surface and industrial wastewater, which allows to effectively purify these waters from toxic and biogenic elements and reduce pollution of surface water bodies. The technology assumes the absence of waste, as the resulting biomass of microalgae is considered as a raw material for the production of various products. Scope of the innovative technological product: Technological schemes of domestic, rain and industrial wastewater remediation, protection water bodies from pollution, improvement of surface water quality.

scholarly journals Solid bio-fuel production at Moscow wastewater treatment plant

2020 ◽  
Vol 207 ◽  
pp. 02002
Author(s):  
Nikolay Makisha ◽  
Igor Gulshin
Keyword(s):  
Wastewater Treatment ◽  
Power Plants ◽  
Wastewater Treatment Plants ◽  
Thermal Power ◽  
Treatment Plant ◽  
Wastewater Sludge ◽  
Biofuel Production ◽  
Fuel Production ◽  
Solid Domestic Waste ◽  
Solid Biofuel

The article has an aim to describe experience of Moscow in the field of solid bio-fuel production at wastewater treatment plants (WWTP). Brief assessment of solid biofuel production technology at biological treatment facilities of domestic and mixed sewage (wastewater sludge as a fuel resource) shows its significant potential from the economic, environmental and social points of view that will ensure the sustainable development of the area (cities, regions) of application. Solid biofuel production is a technological stage of sludge treatment at wastewater treatment plants aimed at reducing the sludge mass and changing their physical and mechanical properties for its further use at as a fuel component on condensing and thermal power plants or as alternative fuel for cement production and energy supplements for burning of solid domestic waste. The technology of solid biofuel production is based on removing moisture of wastewater sludge in drying machines. The solid fuel facilities capacity lies in the range of 1 to 130 tons per day, when the entire amount sludge is exposed to drying (effluent humidity of sludge is 10%), or 1 to 400 tons per day when the sludge is partially dried and afterwards is mixed with the initial sludge (effluent humidity of sludge is 40%).

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