Trade Effluents are often difficult to quantify, both in terms of quality and chemical content.

It is pressing for companies to be required by law to disclose details of trade effluents.

It can handle unscreened sewage, trade effluents, thick slurries and solids up to normal limitation of 38mm.

Non-sewage trade effluents (eg from the treatment of industrial waste waters) can come from other treatment plants.

You may also need authorisation from the SEPA to discharge some trade effluents to sewer.

When a routine environmental review identified that trade effluents had a potential to cause harm, optical fibre producers, Agilent Technologies responded quickly.

These are called Trade Effluent Charges and the level is based on the strength and volume of the waste which is discharged.

Part 1 - sampling and chemical testing of untreated sewage, treated sewage effluents and trade effluents.

The standard was designed to underpin confidence in the analysis of untreated sewage, treated sewage effluents and trade effluents.

The presence of free ammonia or of protein material is almost always an indication of contamination of the water with sewage or trade effluents, such as gas liquor.

He then worked for Yorkshire Water Services for 24 years, initially in laboratory quality control before moving to a variety of management posts in Trade Effluent Control.

This book reports the control of one such activity, namely pollution discharged directly to watercourses, excluding trade effluents which are disposed of to foul sewer for purification at sewage treatment works.

The consumption of oxygen or oxidizing agents by water arising from the presence of reducing substances, usually organic, is of value in the assessment of trade effluents and sewage but is not of great importance for process waters.

It is important to bear in mind that, in contrast with trade effluents which disappear into sewers, most effluents discharging directly into watercourses are visible - and even if the discharge is not visible, its consequences (in the form of dead fish or other damage to the river's vital signs) certainly are.