200 KLD STP — Meaning, Typical Projects & What to Specify

200 KLD is one of the most common sewage treatment plant sizes quoted for mid-size residential societies, small hotels, and institutional campuses in India. It means the plant is designed for up to 200,000 litres of sewage per day on an average daily basis — not necessarily uniform flow every hour.

This guide explains what 200 KLD means in real projects, which occupancies it typically serves, footprint and cost bands, and how to validate the number before you sign a vendor contract.

200 KLD means — plain definition

200 KLD = 200 kilolitres per day = 200,000 litres per day of influent to the STP battery limit (as defined in your consent and P&IDs). It is a hydraulic design capacity. Biology, clarifiers, and sludge handling must all be proven for that sustained load — plus credible peaking through equalization.

Which projects typically need a 200 KLD STP?

• Residential: Roughly 350–450 flats at 4 persons/flats using 108 LPCD sewage norms — always reconcile with your actual RERA occupancy.
• Hotels: Often too small alone at 200 KLD unless large room count + banquet kitchen; 50–100 KLD is more typical for boutique hotels.
• Hospitals: Small nursing homes may sit below 200 KLD; 300-bed hospitals usually need larger capacity — see STP for hospitals guide.
• Schools / colleges: Large day campuses with hostels can approach 200 KLD when hostel beds are included.

Worked arithmetic for apartments appears in our STP capacity & KLD calculation guide and KLD full form & LPCD converter.

200 KLD STP footprint and technology

Packaged MBBR or SBR plants at 200 KLD commonly need roughly 80–150 m² of install space depending on equalization, tertiary filtration, and room for sludge storage — plus access for tanker desludging. Basement installs must account for headroom, odour control, and emergency drainage.

Technology choice affects operability more than the KLD label: SBR needs reliable automation; MBBR needs media retention and blower discipline. Compare trains on MBBR vs SBR for Indian projects.

Indicative 200 KLD STP cost (2026 planning bands)

Supply-only packaged STP estimates in India often fall in the ₹70 lakh – ₹1.4 crore band for 200 KLD, varying by automation, tertiary scope, civil interface, and pre-treatment. Use our STP cost calculator with 200 KLD selected, then validate with an engineering scope review.

Compliance at 200 KLD

Discharge limits do not relax because the plant is “only” 200 KLD. Your CTO still specifies BOD, TSS, coliform, and possibly reuse parameters. Align design with CPCB STP outlet parameters and state consent text — especially if treated water feeds flushing or landscaping.

Before you buy a 200 KLD package

• Confirm population and LPCD basis in writing.
• Demand equalization volume and peaking factor used in hydraulics.
• Require commissioning test protocol against consent parameters.
• Plan AMC with named response times — see STP AMC guide.

Share your occupancy table and draft consent on contact for a sizing review.