Water system - Import export

These packages are tailored to suit our clients’ requirements while adhering to European Standards, Ciria and HSE guidance. We engineer solutions to integrate into existing or new sites and can also provide packaged, standalone systems which are largely independent of the main plant. We provide solutions for chemicals such as sodium hydroxide, sulphuric acid, hydrochloric acid, ferric sulphate, aluminium sulphate, ferric chloride, antifoam, ortho-phosphoric acid, etc. Storage capacity, duty/standby configurations, materials of construction, etc. are tailored to the application, to provide adequate storage and ensure that the system can be operated and maintained safely. The chemical storage and dosing systems are fully fitted with instrumentation such as level controls, leak detection, flowmeters, etc. and are generally PLC controlled with an operator interface panel or PC used to allow the operator to view the plant operation and change parameters.

Clarifiers are settling tanks built for continuous removal of solids. Clarifiers are generally used to remove solid particulates or suspended solids from liquid for clarification and (or) thickening. We use lamella settlers within our clarifiers, which greatly increases the clarifier capacity and enables a much greater flow to be treated in the same footprint as conventional clarification. Our design also ensures maximum efficiency in terms of upward flow velocities. The lamella settlers can be used in new builds and are also an excellent option for upgrading and increasing the flow through an existing plant. Our clarifiers can be designed in a wide range of sizes and configurations to suit the individual needs of each of our clients. The clarifier can be used as a standalone system, taking the full plant flow, with or without additional equipment such as sand filters, screens, etc.

Colloide‘s Dynamic Sand Filter offers an excellent treatment system for the removal of solids and other contaminants from a water/wastewater stream. This filter is always on line, continually filtering the incoming water while continually backwashing a small portion of the sand bed. The Dynamic Sand Filter process: The feed water is fed into the filter at the base of the active sand bed through the distribution ring. It then flows upward through the downward moving sand bed where the solids are filtered out. The clean filtrate exits the filter through the overflow weir. The continuous reject flow of washing water is discharged through a separate outlet. The dirty sand is continuously removed from the active sand bed thanks to the action of the air-lift pump. This pump draws the contaminated sand from the bottom of the filter body. A mixture of sand, dirty particles and water is transported upward through the air-lift pipe into the washing chamber at the top of the filter.

Colloide provides circular and rectangular scraping systems (plastic and steel) for settlement and flotation tanks. These tanks are generally rectangular or circular, designed to separate solids from the liquid by either settlement or flotation. Circular Tanks We offer two alternatives for circular tanks: -A rotating bridge structure powered by a peripheral drive unit. The bridge supports a frame below it onto which is fixed sludge scraping blades at floor level and a scum blade at top water level. -A fixed bridge mounted on the walls of the tank. A central drive unit rotates the scraping mechanism around the tank, the sludge scraping blades diverting the sludge to a hopper. Rectangular Tanks A chain and flight principle is used for rectangular tanks, consisting of two main chains which move the scraping booms up and down the tanks. When scraping at top water level, the booms push the floated material to one end of the tank, where it is collected by a rotating sludge pipe.