Water recovery & reuse

Industrial Water Recovery & Reuse Systems

Recover water where the chemistry, process risk and whole life economics justify doing so.

Water chemistryProcess engineeringLifecycle support
HC
ENGINEERED PROCESSIndustrial Water Recovery & Reuse Systems
01Water balance
02Segregate
03Treat
04Verify
05Reuse
Recovery only where chemistry and economics support it
01Understand the water

Start with representative chemistry, demand and operating conditions.

02Engineer the process

Select and size treatment around the required output rather than a catalogue package.

03Design for operation

Consider controls, access, redundancy, maintenance and lifecycle cost from the outset.

Use Water More Than Once Where It Makes Engineering Sense

Water recovery can reduce mains consumption, wastewater discharge and operating cost.

But the objective should not be to recover the highest possible percentage of water regardless of complexity.

The objective is to identify which water streams can be reused reliably and economically.

Potential Recovery Sources

These can include:

  • RO concentrate
  • Final rinse water
  • Cooling tower blowdown
  • Condensate
  • Process wash water
  • Selected wastewater
  • Rainwater
  • Treated effluent

Start With the Water Balance

Before selecting technology, Hydra-Clear establishes:

  • Where water enters the site
  • How much each process consumes
  • Where it leaves
  • Which streams are continuous
  • Which streams vary
  • Contamination levels
  • Potential reuse applications

Treatment Technologies

Recovery systems may incorporate:

  • Filtration
  • Ultrafiltration
  • Activated carbon
  • Ion exchange
  • Nanofiltration
  • Reverse osmosis
  • UV
  • Chemical conditioning

RO Concentrate Recovery

RO reject still contains water.

Whether it should be recovered depends on the concentrate chemistry.

Further recovery increases the concentration of scale forming salts and silica, so the chemistry must be modelled before increasing overall system recovery.

Economics

We consider:

  • Mains water cost
  • Wastewater cost
  • Energy
  • Chemicals
  • Consumables
  • Maintenance
  • CAPEX
  • OPEX
  • Payback

The most sustainable water is often the water you don't need to buy again.

Call 0800 999 6770 to discuss a site water balance.

Hydra-Clear Process Water

Start with the water. Then engineer the system.

Share the source water, required quality, flow and operating pattern. Our engineers can establish the appropriate treatment philosophy and project route.