Desalination project in Accra
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Abengoa's desalination plant in Ghana produces drinking water to supply populations in Accra metropolitan area, such as Teshie, Nungua or Tema.
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supplies of water, there are regions around the world where water scarcity requires the seeking of alternative
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and encouraged to achieve urban water security including
water recycling and reuse facilities, which collect, treat,
and use wastewater for irrigation and industrial purposes,
as well as for domestic purposes if properly treated, grey water systems that use untreated water that has not
come into contact with toilet waste for non-potable activities,
and rainwater harvesting, which is the capturing and
storing of rainwater for beneficial uses including irrigation.
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• Biological Treatment Variants
• Pros and Cons
At last the SlideShare details on the Important Acts and rules related to Environmental Protection.
Check the link below for details
http://apartmentadda.com/blog/water-workshop-for-apartments-report/
Effluent Treatment Plant Design, Operation And Analysis Of Waste Water
Contents
1. Introduction to Effluent Treatment Plant (ETP)
1.1 Use of water in industries
1.2 Industrial waste water sources
1.3 Effluent Treatment Plant
1.4 National Standards for waste water
1.5 What do these standards means?
1.6 Waste water treatment
1.7 Planning an Effluent Treatment Plant : Factors to Consider
2. Treatment Methods
2.1 Physical Unit Operations
2.2 Chemical Unit Processes
2.3 Biological Unit Processes
3. Operation and control
3.1 Mixed liquor suspended solids
3.2 Sludge Volume Index and Sludge Density Index
3.3 Sludge Age; Mean Cell Residence Time (MCRT)
3.4 Food/Mass Ratio
3.5 Constant MLSS
3.6 Return Activated Sludge Control (RAS)
4. Choosing an Effluent Treatment Plant
4.1 Biological Treatment
4.2 Physico-Chemical Treatment
4.3 Physico-Chemical and Biological Treatment
4.4 Area Requirement Comparison
4.5 Cost Comparison
5. Chemical Analysis of Waste Water
5.1 Commonly used chemicals
5.2 Chemical Tests and procedures
Industrial wastewater treatment
This document provides an introduction and overview of industrial wastewater treatment. It discusses how industries use water for manufacturing and processing purposes, which becomes wastewater that must be treated before discharge to prevent environmental pollution. The document then outlines some key contaminants found in wastewater and characteristics of industrial wastewater. It describes common wastewater treatment methods including physical, mechanical, chemical and biological processes and provides details on specific unit operations like screening, sedimentation, flotation and biological treatment methods.
Waste water treatment processes
The document summarizes various stages of wastewater treatment processes. It discusses preliminary treatment which removes solids, grit, and grease. Primary treatment uses sedimentation to remove 60% of suspended solids. Secondary treatment uses biological processes like activated sludge and oxidation ditches to remove organic matter. Tertiary treatment further removes nutrients and particles through processes like filtration and disinfection. The document provides details on the treatment units and processes involved at each stage of wastewater treatment.
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Desalination project in Accra
- 1. BDDG desalination plant produces drinking water to supply locations around the metropolitan area of Accra, such as Teshie, Nungua and Tema. 60,000 m3/ d 500,000 capacity people The lack of water is one of the biggest issues facing urban Africa. Ghana faces serious constraints to meeting the challenge of providing adequate water and sanitation for its rural and urban inhabitants. Project details Sponsors: BDDG Accra Water Desalination Project ABENGOA The demand for water in Ghana, particularly in Greater Accra, keeps rising as a result of the economic growth, increasing population and urbanization of the region. BDDG will benefit many communities in the capital. The purpose of the desalination plant is to produce drinking water to supply various locations around the metropolitan area of Accra. Thanks to this project, the water situation in Greater Accra looks brighter for the future. Accra Accra desalination plant, a water solution for the region Total investment: $ 126 million Development scheme: DBOOT In operation since: February 2015 O&M period 25 years Off-taker:
- 2. 4 Reverse osmosis 1 Seawater intake A submarine pipeline of 1,200 mm in diameter and 450 m long 2 Pre-treatment Pressurized ultrafiltration membrane system 3 Booster pumps High pressure pumping of filtered water to the reverse osmosis system 5 Energy recovery system Based on isobaric chambers (ERI) 6 Post-treatment Mineralization through calcite beds and carbon dioxide injection and disinfection through sodium hypochlorite 7 Brine outfall An underground emissary of 900 mm in diameter an 150 m long pipeline Membranes: Four racks 15,000 m3 /d each rack 3 H filt BDDG Accra Water Desalination Project 6 4 5 1 2 7 3 6 Desalination process