Project Description

The Problem

As the elderly healthcare industry continues to grow in the UK, expansion in this area needs to be properly planned and executed, particularly with reference to wastewater.  Wastewater produced from cares homes and hospitals differs to that of normal domestic sewage: laundry and kitchen waste make a considerable contribution to the strength and treatability of the wastewater; therefore it is essential that the appropriate treatment system is designed to take this into consideration.

EnSo International has developed a number of effluent treatment designs specifically suited to the type of wastewater associated with residential care home and hospital waste. EnSo are able to design wastewater treatment systems to meet any discharge consent standard set by the regulatory authority and can offer a reference list of residential care homes which consistently meet with the stringent consent limits set by the Environment Agency.

The Solution

EnSo International has gained a reputation for designing and correctly sizing sewage treatment systems that can cope with the difficult wastewater generated within the healthcare industry.  We have successfully supplied a large number of systems serving nursing homes, acute care hospitals and hospices throughout the UK.

Ocean Professional Key Features

  • Bespoke design ensuring the best technology at the most competitive price for each project
  • Reliable and effective processes to achieve discharge qualities of 5:5:5 mg/l (BOD:SS:NH4-N)
  • Flexible Solutions:
    • Utilising existing site assets where possible to reduce overall costs
    • Upgrade of existing equipment
    • Stand-alone biological filters and nitrification filters are available
  • Below ground installation with minimal aesthetic impact (can be made suitable for installation under driveways and car parks)
  • Ocean Energy Saving Device available for up to 50% energy reduction at off-peak usage times
  • Low operation and maintenance costs
  • Full after sales support

The Ocean Professional Range

The Ocean Professional tank range offers EnSo International’s process engineering expertise, providing wastewater treatment solutions for applications up to and including 4000 population equivalent. EnSo selects the most appropriate product to meet the final effluent quality requirements and incorporates existing site assets into the finished scheme, where possible. Using this approach EnSo solutions are able to achieve discharge quality limits as low as 5:5:5mg/l (BOD:SS:NH4 N).

The EnSo team utilise various technologies within the Ocean Professional tank range to ensure the best design for the project.  These include Intelligent Flow Balancing (IFB), Submerged Aerated Filter (SAF), Moving Bed Bio film Reactor (MBBR), Sequencing Batch Reactor (SBR) and Membrane Bio-Reactor (MBR) technology housed within bespoke modular tanks.

Each of the above processes offer distinct advantages over the other depending on the application, treated effluent quality, footprint and budget.


The EnSo Ocean Professional tank range has been designed with the developer and installer in mind.  All tanks are designed using robust and durable GRP or polyethylene.  Invert depths can be provided to suit the installation.  There is also a comprehensive set of installation guidelines provided with every Ocean Professional tank purchased.

Product Selection

The Ocean Professional tank range of products and services is application specific and it would prove impossible to generalise the description of plant under just a single category.  Individual projects are assessed and appropriate plant is selected using the most suitable technology and equipment.  EnSo is able to cater for whatever requirement you may have:

New Schemes

With all new schemes, EnSo offer the most cost effective solution using either modular or “uni-tank” designs.  EnSo view every project as a bespoke design to ensure that the system is designed to suit the application.  This approach prevents over-sizing which is common when using standard products and design criteria.

Upgrades and Refurbishments

If your existing sewage treatment system struggles to achieve discharge consent or where site occupancy has increased, you may benefit by upgrading or refurbishing your assets rather than replacing them with a brand new system.  EnSo are able to offer complete refurbishment or full upgrades to existing treatment systems through the addition of more efficient aeration arrangements and increased process capacity.  This is often the most cost effective solutions and increases the operational life of existing treatment works.

Grease removal units (GRUs) which can be fitted into kitchens and the provision of grease traps enable the higher strength fat, oil and grease to be separated out from the effluent entering the main treatment plants.

Tertiary Treatments

Should existing process treatment plant fail to meet with required discharge consent or if additional process capacity is required, EnSo are able to offer a number of different treatment options to add to your existing system to enable compliance with your existing or new consent to discharge conditions.  These include additional biological treatment and filters to reduce BOD, Ammonia, Suspended Solids, plus dosing to remove Phosphate and UV for disinfection