Sodium Hypochlorite Disinfection - Recirculated

The Government of Western Australia (WA) Housing Authority manages essential services at Aboriginal communities in the remote outback of WA via the Remote Area Essential Services Program. Local Regional Service Providers are engaged by the Housing Authority for the delivery of essential services to these communities. One of the Regional Service Providers identified some communities with consistently low levels of residual chlorine in the potable water supply. The existing chlorine dosing equipment needed upgrading to automate it and store the sodium hypochlorite solution in a temperature controlled environment to prevent heat degradation. The client was looking for a fully automated, low maintenance system, to monitor and maintain free chlorine levels in accordance with Australian Drinking Water Guidelines (ADWG).

The owner of a lithium mine undergoing expansion near Port Hedland in Western Australia required assistance with the treatment of wastewater from a new heavy vehicle (HV) washbay. The requirement was for initial Total Petroleum Hydrocarbons (TPH) reduction via a MAK Water Oil Water Separator (OWS), prior to additional treatment to a level suitable for either reuse in the HV washbay or discharge to environment. MAK Water designed and manufactured a custom SHDR plant to provide both disinfection and pH adjustment of pre-treated wastewater. MAK Water worked closely with the owner’s engineering consultant to review the HV washbay design, specific site requirements and provide the best possible solution.

The owner of a new iron ore mine in Yilgarn, Western Australia required water treatment facilities for potable water, sewage treatment and heavy vehicle (HV) washbay wastewater treatment. MAK Water worked closely with the client to design a custom package of four (4) separate plants, providing the best possible water treatment solutions across the entire mine site. MAK Water supplied a potable water treatment plant located at the iron ore mine to treat hypersaline bore water; a sewage treatment plant located at the camp; HV washbay wastewater treatment for removal of hydrocarbons; and additional disinfection and pH adjustment for water reuse in the washbay.

A contractor for a major Oil & Gas plant expansion project in the northwest of Western Australia had two 260kL water tanks supplying potable water to the construction facilities. MAK Water was selected to design and manufacture a reliable solution to maintain adequate disinfection levels in the tanks and pump the water through the distribution network. MAK Water worked closely with the client to design a fit for purpose, custom Sodium Hypochlorite Dosing – Recirculated (SHDR) plant to continuously maintain a specified chlorine level in the water so that it safely complies with the Australian Drinking Water Guidelines (ADWG). The system is also flexible; able to operate on one tank while the other one is being refurbished.