Sewage Treatment | Water Treatment | Waste Water Treatment | Water Treatment Process & Plant Design
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Affecting Activated Sludge Process

Affecting Activated Sludge Process

PARAMETERS AFFECTING ACTIVATED SLUDGE PROCESS The following parameters affect the performance of the activated sludge process. Wastewater flow and its charactersistic Areation time F/M Ratio or Sludge Loding Rate Activated Sludge Volume Index Sludge Bulking Mixed Liquor Suspended Solids Dissolved...
Sewage Treatment Plant

Sewage Treatment Plant

Treatment Scheme In the treatment system sewage water enters through Bar screens where floating matters are removed. The sewage water is then pumped to extended aeration system where the organic matters is aerobically oxidised. The effluent is then taken to a settling tank where bio-mass is...

Waste Water Treatments

Types of sewage water treatment process. Waste Water Treatment process classified by Installation cost,  occupied area, Technical performance, maintenance and product quality of water. Waste water Treatment plant Process...
Oxidation Ditches or Pasveer Ditches

Oxidation Ditches or Pasveer Ditches

This method of treating sewage was developed by Dr. Pasveer In Netherlands by treating raw  sewage from small communities. No primary treatment is required here. and thus there is no problem for digestive and disposing of  the settled primary sludge. In essence, this method consists of an...
REMOVAL OF SILICA

REMOVAL OF SILICA

Water Treatment of Silica Natural waters, generally, contain about 5-8 mg/l of silica (Si0,). Another important source of silica in water is the sand watertreatments  filter. When water treated by lime-soda process is filtered through a sand water filter, a good amount of silica dissolves in it...
BIOLOGICAL OXYGEN DEMAND

BIOLOGICAL OXYGEN DEMAND

Sewage Water Analysis BOD The presence of free oxygen is necessary for the livelihood of organisms present in the sewage water The aerobic action continuous till the free oxygen is present. As the oxygen exhausts, the anaerobic action or  putrification starts, when complex organic compounds split...
AEROBIC& ANAEROBIC OXIDATION

AEROBIC& ANAEROBIC OXIDATION

OXIDATION PROCESS IN SEWAGE WATER Types of Bacterias in Sewage Aerobic Bacteria Anaerobic Bacteria Sewage water (wastewater ) consist of both aerobic bacterias and anaerobic bacterias, These bacterias can make the oxidation of organic compounds present in the sewage water. Aerobic Oxidation In...
Extended Aeration System

Extended Aeration System

The extended aeration process is one of the modifications of the ASP. It is a complete mix system and provides biological treatment for the removal of biodegradable organic wastes under aerobic conditions. Air may be supplied by mechanical or diffused aeration to provide the oxygen required to...
Small Diameter Gravity Sewers

Small Diameter Gravity Sewers

Sewers Small diameter gravity sewerage (SDGS) also known as settled sewerage and solid free sewerage, is a system for conveying domestic wastewater which has been settled in a septic tank (referred to interceptor tank) . It was developed in Zambia in 1960, to remove the settled wastewater from...
Toxic Heavy metals in Sewage

Toxic Heavy metals in Sewage

Sewage Water Treatment Some metals compounds level only are essential to live for animal, Plant and human being.  Out of that  metal compounds are  toxic to aquatic organisms may find their way into municipal sewerage through industrial discharges and present in significant concentrations in...
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