Finding capacity within your existing water systems

Water is essential across manufacturing operations, from cleaning and cooling to steam generation and, in many food and beverage sites, as an ingredient in the final product. Although water is generally a relatively low-cost utility, its availability and the ability to discharge wastewater can have a significant influence on production capacity and investment decisions.

For manufacturers considering expansion, understanding how much capacity exists within current water systems, and whether it can be increased through improved efficiency, may help avoid unnecessary infrastructure investment or delays to new production.

Understanding the full picture of water use

While most manufacturing sites monitor their incoming water supply, visibility of consumption across individual processes and utilities can vary considerably. Production schedules, product mix, cleaning cycles, and supporting services all influence demand, and without sufficient metering it can be difficult to identify where water is being used inefficiently.

Finding opportunities within existing systems

Improving water efficiency does not always require major investment in new infrastructure, as opportunities can often be found within existing processes, cleaning operations, and supporting utilities.

In food and beverage manufacturing, cleaning in place (CIP) systems, product changeovers and flushing operations can account for significant water consumption. Reviewing cleaning cycles, recovering suitable solutions and reusing final rinse water where appropriate may help reduce demand without affecting production requirements.

Supporting utilities also offer opportunities for water savings, through optimising systems such as cooling tower make up and blowdown, boiler make up water, condensate return, and filtration systems. Better metering and monitoring can help identify abnormal consumption, while comparing water use against production volumes provides a more meaningful measure of efficiency.

For some sites, separating relatively clean wastewater streams and introducing appropriate treatment may create opportunities for reuse, particularly in applications where product contact is not required.

The benefits of these improvements can extend beyond lower operating costs. Where incoming supply is limited, reducing existing demand may release capacity for additional production without requiring an increase in the site's water allocation.

Considering wastewater alongside incoming supply

While incoming water availability is an important consideration, wastewater treatment and discharge capacity can be equally influential when assessing opportunities for production growth.

Manufacturers operate within consent limits governing the volume and quality of wastewater released, and changes in production volumes, product mix, or cleaning processes can affect both. Even where incoming water supply is sufficient, the ability to treat and discharge additional wastewater may limit how much further a site can expand.

Reducing water consumption can decrease the volume requiring treatment, although the impact on wastewater composition also needs to be understood, as lower water volumes may increase the concentration of contaminants.

Building water resilience into investment planning

Alongside improving efficiency, understanding the performance and limitations of existing water systems can help manufacturers make better informed decisions about future investment.

Water resilience involves considering supply reliability, storage capacity, equipment condition, treatment requirements and potential points of failure, as well as the flexibility of systems to accommodate changing production demand.

A structured assessment of site utilities can bring these factors together, helping manufacturers identify where capacity is available, where improvements would provide the greatest benefit and which investments should take priority.

By assessing these opportunities before committing to new production lines or site expansion, manufacturers may be able to release capacity within existing infrastructure, reduce operating costs and improve the reliability of their operations.

For some sites, making better use of the water already available could provide an important part of the capacity needed to support future growth.

How NIRAS can help

NIRAS supports manufacturers in assessing and improving their water and utility systems, from understanding current demand and identifying capacity constraints to developing engineering solutions for efficiency, treatment, reuse and increased production capacity.

Our structured site services assessments examine the performance, capacity and reliability of existing utilities alongside future operational requirements, helping manufacturers identify investment priorities and develop solutions that can be taken through to implementation.