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Environmental Engineering II, Stages of Treatment Process, like, To…
Environmental Engineering II
Arrangement of Wastewater treatment system
Collection process
Water Carriage system and Conservancy system
Sewerage System is help us to conveys sewage or surface runoff using sewers
Combined, Separate and partially combined or partially separate system
Treatment Process
Disposal Process
Harmful Effect of Wastewater
Causes water Pollution
Causes of eutrophication
Spreads' Disease
Wastewater Treatment Plant
Primary Tretament
like
Sedimentation Tank, Septic Tank, Imhoff tank
Secondary Treatment
like
Trickling filter process, Activated sludge Process and Oxidation Ponds
treatments were maintained high level of oxygen can produced
Preliminary Treatment
To remove floating Materials
Screening, Grit Chambers and Skimming Tank
Tertiary Treatment
like
Chlorination process
The water then let off to the lagoon or river
Sources of Wastewater
a waste liquid which has comes from Domestic, Industrial, Commercial, and other parts of village and cities
Rainwater
Design of sewer line
Shape of Sewer pipes
Sewer Materials
Laying and testing of sewer pipe lines
Sewer Appurtenance
Pumps for lifting sewage
Sludge Disposal
Land Disposal
Increasing the soil nutrients
Changes of soil condition
Sea disposal
Affect animals and not permitted to disposal waste to sea
Landfill
Contamination level of ground water
Risk hazard to the publics due to the pollutants
Increasing the biogas production during the decomposition of organic matter
causes of Environmental pollution
Incinerations process
Increasing the high cost but still used in the large cities because of there no sufficient land area are available
Residual waste also still hazard and also needed to be disposal
It Utilized lot of energy during process
Sludge Treatment
Solid waste
Further treatment process to be needed
Thickening
Reduced sludge volume, Concentration and moisture Content
Stabilization
prevent anaerobic breakdown of sludge and odours
chemical Stabilization process were done in the treatment
Dewatering
reducing water content of sludge by physical methods
Filtration process
Sludge drying process
Natural compaction process
Liquid waste
sludge waste safely return to surface water before that studied the desirable parameter
Alternative arrangement of Sewage Disposal
Septic tank, Biogas plant and Vermi-composting toilet
Stages of Treatment Process
like
To remove suspended settable solids
Removal of fine suspended non- settable solids and including colloidal particles
Removal of Pathogens and the remaining very fine dissolved organic matter
Types of sewerage system ,such as
Common practices of undesirable parameter