Packaged and containerised sewage treatment that turns domestic wastewater into clear, reusable water — with a small footprint and low running cost.
Instead of pumping sewage across a city to one distant plant, CWG delivers decentralised, package sewage treatment on-site — compact, low-power and simple to run. Ideal for housing societies, hotels, hospitals, campuses and industrial townships that need reliable treatment and water that can be reused.
A package Sewage Treatment Plant treats domestic wastewater — kitchen, bathroom and toilet flows — through screening, biological treatment and clarification, producing water fit for gardening, flushing and other non-potable reuse.
CWG builds them as underground, mobile-containerised or compact skid units in MS-epoxy, stainless steel or FRP, based on your space and flow. Each is engineered to run on minimum power, land and consumables.
Because they are decentralised, responsibility, cost and reuse all stay local — a practical fit for developments where new infrastructure has to work within the existing environment.
Sewage moves through preliminary, biological and clarification stages to become clear, dischargeable or reusable water.
Incoming sewage passes through screening and an equalisation tank to remove solids and balance flow and load.
Aerobic bacteria — on suspended media (MBBR/TBR) or fluidised media — break down organic pollutants in an aerated reactor.
Treated water separates from biomass in a settling stage, leaving clear supernatant.
Filtration and disinfection polish the water for safe reuse in gardening, flushing and utilities.
Packaged and containerised designs fit tight sites and basements where a conventional plant never would.
Engineered for minimum energy, land and chemical use — keeping operating cost down.
Tertiary treatment produces water fit for gardening, flushing and cooling make-up.
Minimal moving parts and straightforward controls mean low-skill, low-maintenance running.
Skid or container units can be relocated or expanded as your development grows.
Enclosed, well-aerated designs keep the plant neighbour-friendly.
A bioreactor-based plant built below grade to free up valuable surface area.
A mobile, plug-and-run plant in a shipping container for fast deployment or temporary sites.
A skid-mounted fluidised/moving-bed plant for the smallest footprint and simplest operation.
With rapid urbanisation and limited municipal sewer capacity, decentralised STPs let housing schemes, hotels and industries treat their own sewage and reuse the water — easing pressure on drains and freshwater alike, while meeting environmental requirements.
Since 1998, CWG Watch Water Technology has delivered advanced water & wastewater solutions across Pakistan — wastewater plants, RO, demineralization, softening, filtration, specialty chemicals and complete plant engineering. With decades of experience, international technology partnerships and a proven portfolio, we design customised MBBR solutions built specifically for Pakistan’s industrial requirements.
Tell us your flow, space and reuse goals, and CWG will design a package STP — underground, containerised or compact — to match.
