The Project Design of Seasonal Reclaimed Water Utilization System for Liaobin Water Town

2011 ◽  
Vol 243-249 ◽  
pp. 4766-4770
Author(s):  
Ji Ku Zhang ◽  
Yang Jiang ◽  
Lin Zou
Keyword(s):  
Sewage Treatment ◽  
Reclaimed Water ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Sewage Water ◽  
Project Design ◽  
Water Utilization ◽  
Reuse System ◽  
Sewage Reuse ◽  
Research Analysis

Conbined with the Eco-residential Island, the project of reclaimed water utilization for Liaobin water town in Panjin is mainly introduced. The reclaimed water resource contains rainwater and domestic sewage water, which is collected mainly in the range of urban (regional).After the second-level processing by sewage treatment plant, it is mainly served as flushing water ,which is called “full-sewage” reuse system; in dry season, it is reused directly after corresponding treatment; and in rainy season, the excessive water is pumpinged into the surrounding waterbodies. The research analysis indicates that the plan of “full-sewage” reuse system and the seasonal reclaimed water utilization system used in this area are reasonable and feasible, which can make full use of the reclaimed water and save the water resources effectively, meeting the demand of sustainable development .

Upgrading of 100 000 PE Goch Sewage Treatment Plant – Design of 2-Stage Sewage Treatment and Anaerobic Thermophilic/Mesophilic Sludge-Stabilisation

1992 ◽  
Vol 25 (4-5) ◽  
pp. 331-337 ◽  
Author(s):  
G. Kugel ◽  
E. Zingler ◽  
G. Hellfeier
Keyword(s):  
Retention Time ◽  
Hydraulic Retention Time ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Sewage Water ◽  
Activated Sludge Process ◽  
Plant Design ◽  
Potato Processing ◽  
Processing Wastes

The 100 000 PE Goch STP is to be upgraded by implementing a 2-stage activated sludge process with integrated nitrification and denitrification to treat strong sewage water dominated by potato processing wastes. Thermophilic (75 °C) acidification reactors will be added to mesophilic (38 °C) digesters (total hydraulic retention time about 13 days).

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

Analysis and Design of Sewage Treatment Plant: A Case Study Atnagore

2019 ◽  
Vol 1 (6) ◽  
pp. 543-552
Author(s):  
Elangovan G ◽  
Rajanandhini V.M
Keyword(s):  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Sewage Water ◽  
Municipal Sewage ◽  
Steady Increase ◽  
Analysis And Design ◽  
Treated Sewage ◽  
Secondary Clarifier

The main objective of this study is to carry out to design of a sewage treatment plant for a Nagore and Nagore district, because it has been one of the developing pilgrimage places. Due to steady increase of increasing population, there will be more generation of domestic and municipal sewage. Sewage produces obnoxious smell which causes disease to all creatures. To avoid this problem, proper treatments is necessary before disposal to land by not throwing sewage directly to natural resources and reuse the treated water that ultimately reduces the overall demand of fresh water. Its objective is to produce an environmental safe fluid waste and solid waste suitable for disposal or reuse. In one day the total sewage generated was estimated 5 MLD considering the projected population of Nagore town for the next 30 years? Consequently this paper focuses on the sewage generation in the Nagore area based on the population and sewage treatment plant is designed accordingly. It is proposed to design the various components of sewage treatment plant considering the various standards and permissible limits of treated sewage water. The various components of sewage treatment plant are screening, grit chamber, primary sedimentation tank, biological reactor, secondary clarifier, activated sludge tank and drying beds.

scholarly journals Gill histopathological alterations in Nile tilapia, Oreochromis niloticus exposed to treated sewage Water

2008 ◽  
Vol 51 (5) ◽  
pp. 1057-1063 ◽  
Author(s):  
António Fontaínhas-Fernandes ◽  
Ana Luzio ◽  
Sofia Garcia-Santos ◽  
João Carrola ◽  
Sandra Monteiro
Keyword(s):  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Sewage Water ◽  
Histopathological Changes ◽  
Treated Sewage ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Histopathological Results

Adult Nile tilapia, Oreochromis niloticus, of both sexes were exposed in wastewater from a sewage treatment plant for a period of 4 days. Gill samples were collected after 24, 48, 72 and 96 h and histopathological changes were analyzed by light and scanning electronic microscopy. Gill epithelium of control O. niloticus (freshwater group) was similar to that of other teleosts, while histopathological lesions were observed in exposed fishes. The main histopathological changes were edema, lifting of lamellar and filamentar epithelia and lamellar fusion. Cell proliferation with consequent thickening of the filament epithelium was also found in fishes exposed to the treated sewage water. The severity of the lesions increased with the time of exposure, namely the hyperplasia of the epithelial cells with proliferation of filamentar epithelium and fusion of lamellae observed at 96 h. Additionally, several histopathological results obtained by light microscopy were confirmed through scanning microscopy.

scholarly journals Effect of treated Domestic Sewage Water Irrigation on Yield and Uptake of heavy metals in cotton - A Case Study from Nagpur City, Central India

Agropedology ◽  
2019 ◽  
Vol 26 (1) ◽  
Author(s):  
A. R. Mhaske ◽  
Keyword(s):  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Central India ◽  
Sewage Water ◽  
Well Water ◽  
Growing Period ◽  
Randomized Design ◽  
Treated Sewage ◽  
Safe Limit

Availability of irrigation water is a crucial problem especially in arid and semi arid regions; and hence, application of wastewater in agriculture in such regions seems to be an attractive preposition. Increasing need for water has resulted in the use of treated sewage water application for agriculture. In the present study, cotton (Gossypium hirsutum L.) crop was irrigated with treated sewage water (TSW) through phytorid sewage treatment plant (anaerobic and aerobic conditions) and well water (WW) completely randomized design. In both the treatments recommended NPK doses of fertilizers were applied. The results showed better crop growth throughout the growing period. Seed cotton yield was enhanced by 11.82% with treated sewage water irrigation over the irrigation by well water. The accumulation of heavy metal in plant was far below than the prescribed safe limit. Therefore findings give applicable advice to farmers and agricultural researchers for proper management and use of treated sewage water for crop irrigation.

scholarly journals Microsprinkler Irrigation of Young `Redblush' Grapefruit Trees Using Reclaimed Water

HortScience ◽  
1993 ◽  
Vol 28 (12) ◽  
pp. 1157-1161 ◽  
Author(s):  
Michael A. Maurer ◽  
Frederick S. Davies
Keyword(s):  
Sewage Treatment ◽  
Reclaimed Water ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Tree Height ◽  
Fine Sand ◽  
Poncirus Trifoliata ◽  
Citrus Paradisi ◽  
Trunk Diameter ◽  
Irrigation Levels

Two field studies conducted from 1990 to 1991 evaluated the effects of reclaimed water on growth and development of 1- and 2-year-old `Redblush' grapefruit (Citrus paradisi Macf.) trees on Swingle citrumelo [Citrus paradisi (L.) Osb. ×Poncirus trifoliata (L.) Raf.] rootstock. Treatments were arranged as a3 (water sources) x 3 (irrigation levels) factorial at two locations on an Arredondo (well drained) and Kanapaha (poorly drained) fine sand near Gainesville, Fla. Irrigation treatments included 1) reclaimed water, 2) reclaimed water plus fertigation, and 3) well water plus fertigation. The reclaimed water was formulated to simulate that of a sewage treatment plant at Vero Beach, Fla. Irrigation was applied at 20% soil moisture depletion, or at 19 or 25 mm·week regardless of rainfall. In both experiments, visual ratings of tree vigor, and measured tree height and trunk diameter, were significantly lower for trees watered with reclaimed water without fertilizer than for the others in both years. Moreover, there was no fourth leaf flush in 1991 with reclaimed water. There was a significant increase in leaf Na, Cl, and B concentrations for the reclaimed water and reclaimed water plus fertigation treatments in 1990; however, in 1991 only leaf B concentrations showed a similar trend. In 1991, there were no significant differences in leaf Cl concentrations. Visual symptoms of N deficiency were observed by the end of the first season in trees grown with reclaimed water. Irrigation levels generallv did not affect tree growth.

Heavy metals in outflows from a sewage treatment plant and in waters and sediments of ponds supplied with them

2009 ◽  
Vol 38 (4) ◽  
Author(s):  
Stefan Tucholski ◽  
Kazimierz Markiewicz ◽  
Emilia Markiewicz ◽  
Marcin Duda
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Sewage Water ◽  
Post Treatment ◽  
Metal Concentrations ◽  
Heavy Metal Concentrations ◽  
System A

Heavy metals in outflows from a sewage treatment plant and in waters and sediments of ponds supplied with themThe examination of total amounts of heavy metals (Hg, Cd, Cu, Pb, Cr, Ni, Zn) was conducted in the outflow from a sewage treatment plant and in the waters and sediments of ponds supplied with them. As the water passed through the pond system, a decrease of heavy metal concentrations in the post-treatment sewage water supplying the ponds was observed. The highest concentrations of heavy metals were found in the outflow from the sewage treatment plant and lower concentrations were observed in the water of pond 1 (except for Zn), which was the direct receiver of post-treatment sewage, while the lowest values were noted in the final pond. The concentration of heavy metals in the sediments decreased in consecutive ponds. The highest concentrations were determined in the sediment of pond 1 that received the post-treatment sewage directly from the sewage treatment outflow, whereas the lowest values were estimated in the sediments of pond number 4, which was the final pond in the system.

Research on the Ladder Pricing Method of Reclaim Water Based on Cost-Plus

2014 ◽  
Vol 1073-1076 ◽  
pp. 1724-1728
Author(s):  
Xiao Jun Liu ◽  
Si Ru Han ◽  
Xi Luo
Keyword(s):  
Sewage Treatment ◽  
Market Price ◽  
Reclaimed Water ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Water Source ◽  
Pricing Model ◽  
Recycled Water ◽  
Functional Relations ◽  
Price Demand

Reclaimed water can effectively alleviate the water crisis which is the second water source of city. The functional relations in cost price, demand and transportation of the reclaimed water using are determined by the method of cost-plus which is based on the premise that the funds of reclaimed water network construction should be recovered. The users are divided into different groups according to the distance between the user and the water recycling. According to the demand diversity in different users, a complex tiered pricing model is established which is relevant of water requirement and the distance of conveyance. Finally, taking the Second Sewage Treatment Plant in Xi'an as an example, the water price of the user - the western suburbs Power Plant of Xi'an is calculated using this model. The result is consistent with the actual situation, which can verify the accuracy and usefulness of this article pricing model. All of these have provided a theoretical basis for the development of the market price of recycled water.

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.

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