scholarly journals Supercritical Treatment Technology for Water Purification

2020 ◽  
Author(s):  
Michael Mann ◽  
◽  
Srivats Srinivasachar ◽  
Nicholas Dyrstad-Cincotta ◽  
Teagan Nelson ◽  
...  
Keyword(s):  
Water Purification ◽  
Treatment Technology ◽  
Supercritical Treatment

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 Application of water treatment technology with help solar and antimicrobial power to village communities Tanjung Selamat Sub-district Sunggal Districts Deli Serdang

2019 ◽  
Vol 4 (2) ◽  
pp. 551-557
Author(s):  
Isnaini Nurwahyuni ◽  
Riyanto Sinaga ◽  
Rizky Yudha Pratama ◽  
Fathurrahman
Keyword(s):  
Water Treatment ◽  
Water Purification ◽  
Rural Areas ◽  
Appropriate Technology ◽  
Raw Material ◽  
Clean Water ◽  
Raw Water ◽  
Solar Panels ◽  
Treatment Technology ◽  
Village Communities

The need for clean water is a challenge in rural areas, especially villages that have not yet been reached by the Regional Water Company (Perusahaan Daerah Air Minum,PDAM). One of the villages experiencing problems with the availability of clean water is Tanjung Selamat Housing Village, Deli Serdang Regency. The people in this village rely solely on ground water that comes from private bore wells. The problem faced is that the water is relatively high in turbidity, and the level of water sterilization is also very low because it contains micro-organisms that cause disease such as dysentery, typhoid diarrhea and so on. An efforts to clean water using citrate have been made but the level of turbidity of the water is still above the threshold. To overcome this problem, appropriate technology is needed for water treatment to produce clean water. The purpose of this activity is to design and implement a technology to process raw water into clean water for public consumption. A design of antimicrobial water purification set with the help of solar power has been provided in Tanjung Selamat Deli Serdang Housing in 2019. The steps taken are surveying the existence of water standards, microbial laboratory testing and acidity test. Low quality raw water has obtained in the target villagewhere the water is high turbidity level, yellowish color, acidity level 6, 23 and contains coliform E.coli bacteria, so it requires processing before it is used as raw material for domestic purposes and drinking water. The application of purifying technology with the help of solar panels is able to convert raw water into clear water, has an acidity of 8.6 and is free of E. coli bacteria. The water produced is also alkaline so it is good for domestic consumption. Water user communities really feel the benefits of appropriate water purification technology developed in community service activities

scholarly journals Rural Water Quality Monitoring and Exploring Low-Cost Treatment Technology with Water Hyacinth

2021 ◽  
pp. 9-12
Author(s):  
Nayar Renu ◽  
Patel Rajani
Keyword(s):  
Water Quality ◽  
Water Purification ◽  
Water Hyacinth ◽  
Physicochemical Parameters ◽  
Eichhornia Crassipes ◽  
Low Cost ◽  
Treatment Technology ◽  
Aquatic Life ◽  
Hand Pump ◽  
Cost Treatment

Ground water in general is clean and fresh. However, industrialization and urbanization together with intensified agricultural activity have led to increasing demands on one hand but to the potential for large scale release of contaminants on the other. Water pollution disturbs the normal uses of water for agriculture, public water supply, aquatic life, wild life and industry. An understanding of the various types of pollutants is of considerable importance to the efficient management of water resources. Inorganic pollutants discharged into natural waters consist of mineral acids, inorganic salts, metal compounds, complexes of metal and trace elements. The proposed investigation will evaluate the underground water quality of hand pump water and Tap water of Sirgitti in rural area and its surrounding industrial areas near 7 km from Bilaspur C.G. With this objective in mind, A new and low-cost technology for purification for water by water hyacinth (Eichhornia crassipes), is a feasible solution. Water samples were collected during the growth of water hyacinth. Water purification with low-cost treatment technology using water hyacinth. The common Water Hyacinth is vigorous growers known to double its population in only 12 to 15 days. In the Water Hyacinth area and the nearby area, water pH showed a decrease between the August and September sampling followed by an upward trend and stayed stable around 9.3 in the far water hyacinth area. Water transparency showed a slow increase in August and September, and then a gradual decline in October; generally, transparency was significantly lower in the water hyacinth area than in other areas. Water Hyacinth has been used in aquatic systems worldwide for waste water purification. It has tremendous capacity of absorbing nutrients and other substances from the water and hence brings the pollution load down. In the present study an attempt was made to find the potential of Water Hyacinth in the treatment of Tap and hand pump water near industrial area of Sirgitti. The parameters studied were pH, EC, DO, BOD, TDS, Salinity, Alkalinity and Turbidity. Six months of experimental investigation showed that water hyacinth reduced considerably all the physicochemical parameters and but increased the Dissolved Oxygen (DO) to a significant level therefore it is concluded that Water Hyacinth (Eichhornia crassipes) is highly efficient in purification of water in respect of physicochemical parameters.

Comparative Research for Different Treatment Technologies of Daily Drinking Water

2013 ◽  
Vol 663 ◽  
pp. 863-869
Author(s):  
Cheng Li ◽  
Ting Lin Huang ◽  
Wen Jie He ◽  
Chen Li ◽  
Zhi Wei Li
Keyword(s):  
Drinking Water ◽  
Removal Efficiency ◽  
Water Purification ◽  
Influence Factors ◽  
Drinking Water Treatment ◽  
Water Production ◽  
Membrane Process ◽  
Treatment Technology ◽  
Analytic Hierarchy ◽  
Conventional Process

The research takes Yang Liuqing water plant as an example.Compare the studies of the conventional process, coagulation pressure type membrane process, coagulation submerged membrane process between removal efficiency and water production rate.The result shows the removal efficiency of raw water turbidity and oxygen consumption had an increase of 7% and 4% than the conventional process. Disposable water production rate increased by 1%-2%.Meanwhile combined with other influence factors,a analytic hierarchy model has been established. From the two aspects of cost and benefit,compare comprehensively different process.The result shows that coagulation - immersed membrane process is more suitable drinking water treatment technology for water purification operation in water purification plant.

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