Chemical Dosing

Nomenca Limited offers a comprehensive range of standard and bespoke Chemical Dosing products, designed and factory built to meet the various demands of the water industry.

Type 1

Type 1

The Type 1 is an enclosed fully automated dosing rig with clear sliding or removable doors optimised for performance, safety and maintenance.

Factory built and available in standard or bespoke arrangements for both potable and waste water applications the dosing rig offers single or multiple pump arrangements, supports a wide array of process equipment, integrates into a variety of communication systems and is supplied with all process pipework and electrical systems connected, tested, pre-­commissioned, and ready for installation.

Type 2

Type 2

The Type 2 is designed and manufactured as a turnkey solution for small to medium storage applications.

The complete package arrives to site within a prefabricated bund with all process pipework and electrical systems connected, tested, pre-­commissioned, and ready for installation. This solution is suitable for the majority of chemicals and has shown particular benefits in small-scale disinfection and medium-scale coagulation applications.

Type 3

Type 3

The Type 3 is the complete chemical dosing solution contained within a civil bund. It offers a wide selection of dosing ranges and storage capacities for the most commonly used chemicals in process water treatment. The range ensures reliable and accurate dosing control whatever the application.

The Type 3 would normally be used in place of a Type 2 where storage capacity requirements are large.

Type 4

Type 4

The Type 4 is a fully contained, bunded and automated dosing system with segregated control, tanker fill and chemical storage areas. Offering a wide selection of dosing ranges and storage capacities each solution is available with multiple duty/standby arrangements, automated changeover, flow measurement and leak detection.

Factory built with support for a full range of communication systems and process equipment the type 4 is supplied with all process pipework and electrical systems connected, tested and pre-commissioned and is ready to run on installation.

Type 5

Type 5

The Type 5 is a turnkey solution with a wide range of storage applications consisting of a prefabricated tank, bund and kiosk optimised for performance, safety and maintenance.

The factory built system which is supplied with all process pipework and electrical systems connected, tested and pre-commissioned arrives to site in two sections, allowing for quick and simple installation. This solution is suitable for the majority of chemicals and has shown particular benefits in coagulation applications.

Type 6

Type 6

The Type 6 is a highly cost-effective and reliable system for small volume non­-critical dosing.

Factory built, consisting of a chemical fill point, medium density polyethylene tank, integrated bund and leak detection, all process pipework and electrical systems are connected, tested, pre-­commissioned, and ready for installation. 

Secondary Chlorination

Type 7

The Type 7 Dosing System is a dosing rig designed for secondary chlorination water treatment. This type of rig is normally installed at service reservoirs which are fed from a main water treatment works and the supply is already chlorinated and requires a ‘top-up’ due to the service reservoir being located at some distance from the main WTW. Once the supply is secondary chlorinated by an analytically measured dose, it is fed into supply.

The Type 7 Dosing System is physically made up of two parts. One part is the reception of chemical via a manual transfer pump allowing the chemical to be cleanly and safely handled; and the mixing with water to dilute the chemical to a less volatile solution strength. The second part is the storage of the diluted solution; and the dosing of the solution into the main.

The Type 7 Dosing System is suitable for a flow of up to 30 l/hr and pressure of up to 16 bar. The pumps and associated instruments can be supplied by 110V or 240V.