Agricultural Wastewater & Treated Water Reuse

Agriculture: Pakistan's Largest Water User Needs Sustainable Solutions

Pakistan faces severe water scarcity, and agriculture accounts for over 90% of freshwater consumption. Treating and safely reusing municipal and industrial effluent for crop irrigation is both an environmental necessity and economic opportunity — reducing freshwater demand and providing nutrient-rich irrigation water. Critical GREEN designs systems producing irrigation-grade effluent meeting WHO/FAO guidelines. Constructed wetland systems combine treatment with ecological benefit.

Typical Treatment Train

ABR + HSSF wetlands provide low-cost pathway to irrigation reuse for rural settings. SBR or MBR + UV provide higher quality for unrestricted reuse. ClO₂ disinfects without chlorine residue on crops.