Grey Water Treatment and Recycling Systems
Reuse systems for showers, wash basins and laundry water, designed for irrigation, toilet flushing and cooling tower make-up.
Product Description
Grey water reuse can reduce fresh-water demand when the stream is separated from black water and treated to the right reuse target, and DSTC engineers the system around the building flow. Each system is engineered to the daily grey water volume, source mix and reuse target, then built with screening, filtration, UF or media filtration, UV or chlorine disinfection, storage and reuse pumping where required. DSTC supports the system with SEKO dosing equipment, PWT and H2O disinfection chemicals, filtration media, cartridges, commissioning, spare parts and O&M.
For quotation, send the feed water analysis, required capacity in m3/day, grey water sources (showers, wash basins, laundry), reuse target (landscape irrigation, cooling tower make-up or toilet flushing), available space, storage requirement and delivery city.
Overview
Grey water recycling is different from sewage treatment and different from desalination. The goal is not full biological treatment or salt removal; the goal is to remove hair, lint, solids, turbidity and microorganisms so the water can be stored and reused safely. A typical DSTC grey water train uses screening and filtration, then UF for higher clarity or media filtration for a lower-cost reuse target, followed by UV or chlorine disinfection. The design depends on occupancy, daily m3/day, water sources, storage time and reuse target.
Applications
- •Residential compounds reusing shower and wash basin water for landscape irrigation
- •Hotels recovering laundry and bathroom grey water for irrigation and toilet flushing
- •Mosques recycling ablution and wash basin water for irrigation and flushing
- •Commercial buildings and offices feeding recycled grey water to cooling tower make-up
- •Residential towers and apartment blocks reusing grey water for toilet flushing
- •Landscape and green-area irrigation from a dedicated grey water reuse supply
Product Range & Specs
- ✓Process: screening and filtration to remove hair, lint and solids, then ultrafiltration or media filtration, followed by UV or chlorine disinfection to bring grey water to reuse grade
- ✓Components: media filtration in FRP pressure vessels, ultrafiltration membranes that DSTC can supply, and SEKO chemical dosing pumps for chlorine disinfection, with DSTC as the sole authorized SEKO distributor and a supplier of PWT and H2O disinfection chemicals
- ✓Control and automation: timer or PLC-based backwash and dosing control, level and flow instrumentation, and optional online residual-chlorine or turbidity monitoring
- ✓Capacity: engineered to order and sized by daily grey water volume in m3/day and the reuse target, from small compound units up to hotel and building-scale systems, not a fixed model or size table
- ✓Options: ultrafiltration for higher clarity or media filtration for lower cost, UV or chlorine disinfection, plus break tanks, treated-water storage and reuse pumping sets
- ✓DSTC support: engineering, build and commissioning, plus filtration media, cartridges, dosing chemicals, spare parts, and operation and maintenance across Jeddah, Riyadh, Dammam, Jubail and Yanbu
Product Summary
Grey water is light wastewater from showers, wash basins and laundry, not black water from toilets. A grey water treatment system clarifies and disinfects it so it can be reused for landscape irrigation, cooling tower make-up or toilet flushing.
Frequently Asked Questions
What counts as grey water, and is it the same as sewage?+
Grey water is light wastewater from showers, wash basins and laundry. It is not sewage or black water from toilets, so it is usually cleaner and easier to treat for reuse. DSTC designs grey water systems separately from STP sewage treatment plants.
What can the recycled water be reused for?+
Treated grey water can be reused for landscape irrigation, cooling tower make-up and toilet flushing when the treatment train is designed to the required reuse quality.
How does DSTC size a grey water recycling system?+
Sizing is based on daily grey water volume in m3/day, source mix, storage time and reuse target, not a fixed stock model. Send a feed water analysis and expected flow.
Should I choose ultrafiltration or media filtration?+
UF gives higher clarity and a more consistent feed to disinfection, which suits toilet flushing and cooling tower make-up. Media filtration is a lower-cost option where the reuse target allows.
Where in Saudi Arabia does DSTC supply grey water systems, and does it support them after supply?+
DSTC is based in Jeddah and supplies grey water treatment and recycling systems across Saudi Arabia, including Riyadh, Dammam, Jubail and Yanbu. DSTC also supports each system with commissioning, filtration media, dosing chemicals, spare parts and O&M.