Contact Us

ZLD TECHNOLOGIES PVT. LTD.
G77, Ground floor
Eternity Commercial Premises
LBS Marg, Near Teen Haath Naka
Thane West-400604
Thane, Maharashtra, India

Phone: +91-22-49749057
            +91 - 9860024649
E-mail:




ZLD TECHNOLOGIES PVT. LTD.
42, 32, 26 - 3rd & 4th Floor
B Wing, 4 D Square
Visat-Gandhinagar Highway
Chandkheda, Motera - 380005
Ahmedabad, Gujarat, India

Phone: +91-79-48903459
            +91 - 9904407783
E-mail:


Waste Water Treatment Technologies

Wastewater treatment is a process used to convert wastewater - which is water no longer needed or suitable for its most recent use - into an effluent that can be either returned to the water cycle with minimal environmental issues or reused. The latter is called water reclamation and implies avoidance of disposal by use of treated wastewater effluent for various purposes. Treatment means removing impurities from water being treated; and some methods of treatment are applicable to both water and wastewater. The physical infrastructure used for wastewater treatment is called a "wastewater treatment plant" (WWTP).


Although disposal or reuse occurs after treatment, it must be considered first. Since disposal or reuse are the objectives of wastewater treatment, disposal or reuse options are the basis for treatment decisions. Acceptable impurity concentrations may vary with the type of use or location of disposal. Transportation costs often make acceptable impurity concentrations dependent upon location of disposal, but expensive treatment requirements may encourage selection of a disposal location on the basis of impurity concentrations. Ocean disposal is subject to international treaty requirements. International treaties may also regulate disposal into rivers crossing international borders. Water bodies entirely within the jurisdiction of a single nation may be subject to regulations of multiple local governments. Acceptable impurity concentrations may vary widely among different jurisdictions for disposal of wastewater to evaporation ponds, infiltration basins, or injection wells.


Effluent treatment plants (ETP)

The waste water from any industry goes through series of pretreatment which can be broadly categorized into primary treatment, screening, oil removal, grit removal, SS removal and color removal, Biological system, COD, BOD, Nitrogen, Phosphorus removal, Secondary treatment, settling and recycling of biological sludge.


Depending upon the nature of effluent process and scheme is to be designed to decide on best possible operating cost, hassle free & reliable operations.


Membrane Bio Reactor (MBR)

Membrane bioreactor (MBR) is the combination of a membrane process like microfiltration or ultrafiltration with a suspended growth bioreactor, and is now widely used for municipal and industrial wastewater treatment .When used with domestic wastewater, MBR processes can produce effluent of high quality enough to be discharged to coastal, surface or brackish waterways or to be reclaimed for urban irrigation. Other advantages of MBRs over conventional processes include small footprint, easy retrofit and upgrade of old wastewater treatment plants.


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