ON-SITE SEWAGE TREATMENT FOR
INDUSTRIAL TRADE EFFLUENT

Why opt for on-site sewage treatment of industrial wastewater?

With the regulatory environment for industry becoming significantly more complex, industries are finding it more difficult to keep up to date with sewage treatment technologies, and usually Process Managers do not have the time to spend on the more detailed areas of waste water treatment. Pollution Control can relieve this burden by advising on the processes for them. Our engineers have knowledge of industrial processes and available sewage treatment technologies, such as the EcoSAF ( Submerged Aerated Filter ) or an SBR system to deal with the waste water problems of a particular plant and can provide clients with the optimum sewage treatment solution. These can be tailored to the particular industry/effluent offering considerable operational cost savings, as well as freeing up staff who would otherwise be resolving these problems.

Pollution Control appreciate that management involvement is essential to ensure an inclusive and consultative approach is maintained with the client and particularly with the operational staff who will be required to run any new processes.

Pollution Control is able to identify technologies and processes most suitable to a particular effluent and to quantify the problems on a case by case basis. Analysis of the nature of the effluent, how the effluent is produced and the current processes used all helps with the decision as to which solution would be more appropriate for your effluent treatment.

Benefits normally achieved with On-site Sewage Treatment include:

Substantial savings in trade effluent charges
Recycling of sell on by-products
Long term legal compliance
Low capital cost and rapid investment payback

Available Technology

EcoSAF ( Submerged Aerated Filter ) Systems
SBR systems
Aeration
Oil skimming
Dosing & flocculation
Sludge management

Typical Industries benefiting from On-site Sewage Treatment:

Food & veg
Abattoirs
Tanneries
Chemical
Pharmaceutical

The following example of the potential savings that can be made is taken from a current Pollution Control (UK) customer:

YOUR TRADE EFFLUENT BILL

Trade Effluent and Measured Sewerage Charge

Period 01/07/07 to 31/07/07
Cost Centre: 54321

Trade ref: 1234567890
Sewage works: Preston

Invoice to:

A Company,
B Road,
Preston,
PR1.

Premises at:

A Company,
B Road,
Preston,
PR1.

Trade effluent charge - Calculated as per consent

Formula: C = (R + V + M + B1) + (Ot/Os x B2) + (St/Ss x S)

R=17.6p B=2.1p Ot=2485mg/l
V=14.2p B2=14.07p Os=350mg/l
M=0.0p S=10.65p St=282mg/l
Ss=230mg/l

The above bill is your actual bill for July 2007. Untreated sewage would be charged at 146.86p per m³.

Most of the above charges are fixed, however by reducing the COD (Ot) and suspended solids (St), prior to discharge, you will be able to significantly reduce your annual charges.

Basic treatment of your effluent onsite prior to discharge can reduce Ot and St by 65-80%.

The simplest way to determine how the budget should be spent in terms of treating COD and suspended solids, is to work out what effect a theoretical drop in either would do to the charge.

We are assuming an 80% drop of each parameter (which is very achievable), and the July flow of 2400m³.

YOUR TRADE EFFLUENT BILL

Trade Effluent and Measured Sewerage Charge

Period 01/07/07 to 31/07/07
Cost Centre: 54321

Trade ref: 1234567890
Sewage works: Preston

Invoice to:

A Company,
B Road,
Preston,
PR1.

Premises at:

A Company,
B Road,
Preston,
PR1.

Trade effluent charge - Calculated as per consent

Formula: C = (R + V + M + B1) + (Ot/Os x B2) + (St/Ss x S)

R=17.6p B=2.1p Ot=497mg/l
V=14.2p B2=14.07p Os=350mg/l
M=0.0p S=10.65p St=56.4mg/l
Ss=230mg/l