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Entec Biotec™ P6, P12, P18 & P25 (Airflow AF1 - AF4)

Unlike the Bio Disc the Biotec models have no moving parts; sewage is treated by an aerobic biological process. The P6 to P25 range are designed for 1 to 6 properties, small developments, offices, and commercial properties where less than 25 people reside.

• The Biotec treatment plant employs the well proven aerobic biological process
• Below ground installation.
• No mechanical or electrical components within the plant minimise potential operating problems
• Quiet in operation
• Low running costs
• Hydraulic surge control
• Discrete covers
• Minimal Maintenance helps decrease running costs
• Discharges into a water course or a designed infiltration system
• Optional internal pump for when discharge cannot be by gravity
• Low visual impact pedestrian duty cover helps decrease problems with location.
• Casing construction to BS4994 (1987) in GRP (Glass Reinforced Plastic).
• Manufactured under the quality procedures of BS ISO9001: 2000.
• Owls Hall offer a full commissioning and after sales service involving planned maintenance visits. Please visit our servicing section for more information.

• Separate sample chambers for accurate and convenient effluent sampling, as required by the relevant authorities.
• The Biotec should preferably be no closer than 7m from the nearest property, whilst the blower housing can be located anywhere within a 15m radius of the plant itself.

Biotec (AirFlow) Specification Table

	Daily flow (m³/day	BOD load (kg/day)	Wt empty approx. (kg)	Outside dia. (m)	Depth (m)	Inlet invert (m)	Inlet invert to base (m)	Outlet invert (m)	Motor rating (watts)
P6	1.2	0.36	195	1.9	2.2	1.0*	1.2	1.100	60
P6 IPS**	1.2	0.36	220	1.9	2.2	1.0*	1.2	0.605	60
P12	2.4	0.72	217	1.9	2.7	1.0*	1.7	1.100	60
P12 IPS**	2.4	0.72	260	1.9	2.7	1.0*	1.7	0.605	60
P18	3.6	1.10	445	2.7	2.6	1.0*	1.6	1.100	150
P18IPS**	3.6	1.10	471	2.7	2.6	1.0*	1.6	0.605	150
P25	5.0	1.50	470	2.7	2.6	1.0*	1.6	1.100	150
P25 IPS**	5.0	1.50	495	2.7	2.6	1.0*	1.6	0.655	150

This chart is a general guide.

* There are three depths of inlet in the range, 0.45m (P6 range only), 1.0m and 1.5m.

** We can provide a PGD (pumped gravity discharge) version in addition to the IPS version which is designed to simply pump vertically to overcome invert differentials.

Selecting the correct Biotec™ for your needs

There are two options to choose from within our range of small Biotec: the standard gravity version and the Integral Pump model (IPS).

There are also a number of size options in each.

The following information will help you decide which model and size you need.

1. The size of treatment plant you require.

   • P6 - average house

   • P12 - large house/2 average houses

   • P18 - 3 houses

   • P25 - 4/5 houses

2. The depth of inlet you require (known as the drainage invert).
   This is the distance between your sewage drain pipe and ground level (or how deep your drains are). Measure the depth from ground level to your underground sewage drainpipe. The measurement will help you determine which of the three sizes you require.
3. How should you dispose of the wastewater?
   When your sewage has been treated the resulting water needs to be released to a soakaway area or is clean enough to go into a watercourse. Owls Hall are able to assist with the legal requirement of obtaining a consent to discharge from the Environment Agency or other regulatory body prior to installation.

4. Do you need a ‘Gravity’ or ‘IPS’ unit?
   You may find that your soakaway area/watercourse area is some distance away from the outlet pipe where the Biotec™ releases the treated water. If this is the case, you may need to use a model which has the ability to pump treated water. These are our Integral Pump models (IPS).

How Biotec™ works

The Biotec™ sewage treatment plant uses the well-proven aerobic biological process. Treatment is a three-stage process.

• Coarse solids are filtered and retained for gradual breakdown.
• The resulting liquid is continuously distributed over a plastic suspended filter by an integral lift, powered by a remotely sited blower.
• The solids are allowed to settle and under normal domestic conditions, treated water of 20mg/l BOD, 30mg/l S.S., 20mg/l Ammonia can be achieved.

How Biotec™ is installed

The unit is normally installed in the ground with the cover flush to the surface. It can protrude above ground level if required by site levels.

• A Biotec™ should preferably be sited no closer than 10m from the nearest house.
• The plant should be surrounded by concrete and seated on a concrete base.
• The blower housing can be located anywhere within a 15m radius of the system for easy and convenient access.

Owls Hall offer a full Installation service. Please visit our Installation section for more information.

Maintenance

Biotec™ is designed for low-cost and easy maintenance.

Under normal usage your Biotec™ will require periodic emptying. Please visit our service & De-sludging Frequency section for information

Owls Hall offer a full commissioning and after sales service involving planned maintenance visits. Please visit our servicing section for more information.

Alarm Systems

Complete monitoring and control

The new control panels offer a range of features and benefits including:

• Optional alarm facility
• Digital display with fault code to speed up fault diagnosis
• Rapid wiring installation
• Facility for optional telemetry to be fitted
• Flasher beacon available if required

The control panel is able to communicate the nature of any fault, including loss of pressue, pump failure, or power failure. The display will inform the householder, or maintenance representative on site via a digital display and fault code. The system also features a highly visible external beacon (optional) as a primary warning.

All Klargester/Entec products have a full initial 12 month warranty covering all mechanical and electrical components against malfunction, provided the unit has not been subject to damage or abuse.