EnviroHub® Water Treatment Equipment

Under UK legislation, it is an offence to discharge polluting substances into controlled waters without prior approval from the Environment Agency (England and Wales) or Scottish Environment Protection Agency (Scotland). These regulators have considerable powers to prosecute companies that fail to adequately control environmentally harmful materials and processes under the Environmental Permitting Regulations 2010 and the Water Resources Act 1991. Read more.

The Environment Agency's Guides titled "Discharges to surface water and groundwater: environmental permits" and "Temporary Dewatering from Excavations to Surface Water" explain when you do and do not need an environmental permit to discharge water to surface water or the ground.

As per the guidance; "You usually need an environmental permit if you discharge liquid or wastewater into surface water".

Standard settlement tanks rely on silt sediment slowly settling on the base of the tank over time, whereas Lamella Settlement Tanks use a series of inclined plates with a larger effective settling area to increase the speed of separation. Flocculants can be added to the lamella tank to aid the process further. In summary, Lamella Settlement Tanks will separate your solids and liquids faster!

A Concrete Washout is designed to capture and treat water that has been contaminated by cement-based products on site. Water that has been in contact with cement-based products becomes highly alkaline and corrosive, and so we must bring the pH down before the water can be discharged.

Download our Concrete Washout Whitepaper

Flocculants and Coagulants make up an important part of water treatment systems. They are treatment chemicals used in industrial and construction waste water treatment processes for solids removal, water clarification, precipitation, pH control and dewatering.

Coagulants are used to neutralize the negative electrical charge on particles (colloids), which destabilizes the forces keeping the particles apart. Flocculants, gather the destabilized particles together, causing them to agglomerate and settle out of solution.

In some applications, CO2 can be used to neutralise alkaline waters to reach a desired pH for an optimum reaction with the coagulant and flocculant.

Ground investigation reports will help you understand the previous use of the land, potential contamination, ground conditions, existing drainage, the presence of water courses etc. so that you can establish a safe and robust water management plan.

Dewatering refers to the process of removing groundwater or surface water from site before construction begins.

EnviroHub kits consisting of settlement tanks, pH treatment and chemical dosing units are a popular choice for contractors and are frequently used as construction and ground dewatering systems.