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Home > Sewage Treatment Systems > Domestic Sewage Treatment Plants & Tanks
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Domestic Sewage Treatment Tanks & Plants



Treating raw sewage on site is more convenient than transporting it to a treatment facility by road. It is also cost effective and eliminates the need to connect homes to a mains system, especially when this is expensive or impractical. This makes domestic sewage treatment plants a preferred method of wastewater disposal.

These plants are available in a wide variety of specifications to suit different locations and size of dwelling. Modern sewage treatment plants are also made of more superior materials than traditional steel and concrete plants. 

MP Tank Suppliers have a variety of high quality GRP sewage treatment tanks and plants. They are made from 100% virgin unfilled resin, which guarantees consistent wall thickness for greater strength and durability. It also makes the tank lighter and easier to position during installation. 

Sewage treatment plants are ideal for locations where groundwater is vulnerable to contamination if other wastewater management systems are used. It is also recommended for areas where the soil does not pass percolation tests, making septic tanks unusable. 

Benefits of GRP domestic sewage treatment tanks & plants:



•Tough and resistant to wear, shock, corrosion and impact
•Easy to install through integral keying-in lips and lifting eyes
•Low maintenance and cheap to repair
•Convenient onsite management of wastewater 
•Promotes water recirculation back into the ground
•Allows for discharge of effluent into water bodies 
•Outer protective shell for protection in all types of ground conditions 
•Optional filters to further reduce suspended solids and improve effluent quality
•High effluent quality of 11.5:19.2:8.4 (BOD:SS:NH4)
•Tested and certified to BS EN 12566:3 standards
•50 year design life and 25 year structural guarantee 

Domestic sewage treatment tank specifications



MP Tank suppliers stock two types of treatment plants for domestic use. These are:

Standard 6-50PE plant

These are available in ten models for between 6 and 55 persons, and come with the following specifications:

Inlet/outlet dimensions:

•110mm inlet and outlets (6PE, 10PE, 12PE and 16PE)
•160mm inlet/outlet (20PE, 25PE, 30PE, 35PE, 40PE, 45PE and 50PE)
•550mm inlet invert distance (6PE, 10PE and 12PE)
•720mm inlet invert distance (16PE and 20PE)

Inlet/invert distance:

•770mm inlet invert distance (25PE, 30PE, 35PE, 40PE, 45PE and 50PE)
•625mm outlet invert distance (6PE, 10PE and 12PE)
•800mm outlet invert distance (16PE and 20PE)
•850mm outlet invert distance (25PE, 30PE, 35PE, 40PE, 45PE and 50PE)

Tank sizes:

•6 people: 2602 x 1650 x 1935 mm 
•10 people: 2602 x 1650 x 1935 mm.
•12 people, 2860 x 1912 x 2139 mm
•16 people, 2860 x 1912 x 2284 mm
•20 people, 3650 x 1912 x 2284 mm
•25 people, 3650 x 1912 x 2284 mm
•30 people, 4550 x 1912 x 2284 mm
•35 people, 4550 x 1912 x 2284 mm
•40 people, 5200 x 1912 x 2284 mm
•45 people, 5200 x 1912 x 2284 mm
•50 people, 5200 x 1912 x 2284 mm

Shallow 6-35PE plant

This is a low profile sewage treatment plant designed for use in areas with a high water table or bedrock. They can be installed in shallow ground without the need for deep excavation. They are designed for use by between 6 and 35 persons, and come in the following specifications:

Inlet/outlet:

•110mm inlet/outlets (6PE, 10PE, 12PE and 16PE)
•160mm inlet/outlets (20PE, 25PE, 30PE and 35P)
•500mm inlet invert distance
•575mm outlet invert distance 

Tank sizes: 

•6 people: 2860 x 1912 x 1600 mm 
•10 people: 2860 x 1912 x 1600 mm 
•12 people: 2860 x 1912 x 1600 mm
•16 people: 3400 x 1912 x 1600 mm
•20 people: 4550 x 1912 x 1600 mm
•25 people: 4550 x 1912 x 1600 mm
•30 people: 5500 x 1912 x 1600 mm
•35 people: 5500 x 1912 x 1600 mm

Our domestic sewage treatment plants have high specification bio-media and membrane diffusers for proper circulation. This ensures a class leading effluent quality that meets all health and safety regulations. They are also fitted with highly efficient compressors to conserve energy. 

MP Tank Suppliers maintain high stock levels of every product, and can deliver within 4 days of receiving your order. We boast of an extensive distribution network coupled with excellent technical support to all our clients. 

Call us today to place your order or to get more technical specifications on our domestic sewage treatment plants.