scholarly journals Retechnologization of biological sewage water treatment facilities using mathematical modelling

2021 ◽  
Vol 274 ◽  
pp. 08012
Author(s):  
Liliya Khisameeva ◽  
Runar Abitov ◽  
Ramis Alimov
Keyword(s):  
Water Treatment ◽  
Sewage Treatment ◽  
Sewage Water ◽  
Improve Energy Efficiency ◽  
Treated Sewage ◽  
Treatment Facilities ◽  
Sewage Water Treatment ◽  
The Cost ◽  
Biological Treatment System ◽  
Selection Of

The efficiency of sewage treatment plants is an urgent problem of the designed and operating stations. In modern conditions, efficiency is understood as the operation of facilities in which operating costs are minimized, facilities provide standard cleaning, and the company implements measures to modernize and improve energy efficiency and trouble-free operation. The article deals with the comparative analysis and selection of the most optimal scheme of biological sewage water treatment of existing sewage water treatment plants. The indicators of the efficiency of functioning and permissible loads on treatment facilities in the design of aeration tanks for biological sewage water treatment are determined. The results served as the basis for the creation of a mathematical model, with the help of which it is possible to calculate the parameters of the biological treatment system and optimize the process of biological sewage water treatment at existing treatment facilities. Mathematical modeling allows you to reduce the cost of designing and operating treatment facilities, to guarantee the degree of treatment in accordance with the requirements and standards for the discharge of treated sewage water into a reservoir for fisheries purposes.

scholarly journals Sewage Water Treatment Plant for Hingna

2021 ◽  
Vol 9 (VI) ◽  
pp. 796-798
Author(s):  
Vinay Khewale
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Oxygen Demand ◽  
Water Treatment Plant ◽  
Sewage Water ◽  
Treated Effluent ◽  
Sewage Water Treatment

A sewage water treatment plant is necessary to receive and treat waste water (Domestic, Commercial, and Industrial). Its objective is to be convert harmful waste water to safe water environmentally and treated effluent and treated sludge suitable for reuse and disposal such as farm fertilizer. The characteristics of waste water have been performed followed by design of sewage treatment plant. The present study includes design of sewage treatment plant and analysis of waste water – PH value, Total Dissolved Solids (TDS), Total Suspended Solids (TSS), Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Solids (TS), Hardness, Chloride, Acidity, Oil, Fats and grease etc. The sample collection of waste water has been done in many times in a day to obtain an average value of major parameter. Followed by values of this parameter, calculations are done for designing the units of sewage treatment plant and layout is prepared for the same

scholarly journals Eco-management of Wastewater by ZESTP

2018 ◽  
Vol 4 (2) ◽  
pp. 51-57
Author(s):  
Uday Bhan Prajapati ◽  
Arun Lal Srivastav ◽  
Shiraz A.Wajih
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Waste Water Treatment ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Sewage Water ◽  
Pistia Stratiotes ◽  
Total Hardness ◽  
Sewage Water Treatment

In present study, an evaluation of ZESTP (Zero Energy Sewage Treatment Plant) has been described as an alternative solution of sewage water treatment. This system has become widely famous because of having great absorption efficiencyof nutrients, simple construction and maintenance, relatively less costly as well as a strong process. After treatment of sewage water, the level of dissolve oxygen was increased up to 73% due to the enhanced numbers of photosynthetic organisms. Some aquatic macrophytes such as Eichhornia crassipes (Mart.) Solms, Pistia stratiotes L. and Hydrilla verticillata Casp were used in ZESTP for waste water treatment based on phytoremediation. ZESTP could reduce the around 84% turbidity, 46% electrical conductivity, 43% salinity, 74% acidity, 69% free CO2, 73% BOD, 44% COD, 70% suspended solids, 62% total hardness, 71% chloride, 59% cadmium, 51% iron, and 71% copper from the waste water. Naturally, some plants have capability are to retain and/or remove fatal chemicals which are present in sewage water. Moreover, macrophytes based ZESTP is a cost effective and an eco-friendly technique of sewage water treatment.

Proportional Control of Dissolved Oxygen Concentration of Sewage Water Treatment in Oil Field

2013 ◽  
Vol 421 ◽  
pp. 798-802
Author(s):  
Chao Xie
Keyword(s):  
Water Treatment ◽  
Dissolved Oxygen ◽  
Activated Sludge ◽  
Design Procedure ◽  
Sewage Water ◽  
Oil Field ◽  
Dissolved Oxygen Concentration ◽  
Proportional Control ◽  
Simulation Results ◽  
Sewage Water Treatment

Activated sludge method is mainly used to sewage water treatment of water injection system in oil field, dissolved oxygen of sewage pond plays a important role in the sewage water treatment process. The proportional control algorithm of dissolved oxygen concentration is developed based on a first time delay model, and the parameter values of the controller is determined by using stability margins design approach. Simulation results are provided to illustrate the design procedure and the effectiveness of the proposed methods. When applying to the wastewater treatment system based on activated sludge, this method can achieve a satisfied treating performance with robustness. Simulation results are given to demonstrate the design procedure and the effectiveness of the proposed methods.

Studies on kinetics and settling behavior of flocs formed using a sustainable coagulant in sewage water treatment

2019 ◽  
Vol 169 ◽  
pp. 72-81
Author(s):  
S. Vishali ◽  
H. Gayathri ◽  
Richa Malhotra ◽  
Arpita Mahapatra
Keyword(s):  
Water Treatment ◽  
Sewage Water ◽  
Sewage Water Treatment ◽  
Settling Behavior

Hong Kong Sludge Treatment Facilities

2010 ◽  
Vol 5 (2) ◽  
Author(s):  
Echo Leong ◽  
Alex Kwan ◽  
Priscilla Yuen
Keyword(s):  
Hong Kong ◽  
Sewage Treatment ◽  
Treatment Technology ◽  
Sludge Treatment ◽  
Sludge Disposal ◽  
Design Build ◽  
Treatment Facilities ◽  
Dewatered Sewage Sludge ◽  
Fluidized Bed Incineration ◽  
Selection Of

At present, all dewatered sewage sludge generated by sewage treatment works (STW) is disposed of at landfills. This current practice of sludge disposal at landfill is not sustainable from both environmental and technical perspectives. The Hong Kong sludge contains high content of chloride due to use of seawater flushing in most of the Hong Kong areas and Hong Kong is a densely populated city. This unique condition has limited its selection of the alternative sludge treatment technology. The Sludge Treatment Facilities (STF) adopting fluidized bed incineration technology is a sustainable alternative for sludge disposal in Hong Kong. The design capacity of the STF is 2000 wet tonnes per day. The STF will be implemented under a Design-Build-and-Operate contract arrangement with a contractual operation period of 15 years and is scheduled to be commissioned by 2012.

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