Commercial buildings, factories, and apartments in Sri Lanka must meet Central Environmental Authority (CEA) effluent discharge limits for parameters like BOD, COD, and TSS before wastewater can be released to soakage, drains, or waterways. Parawewa's biological treatment process is designed and lab-tested to bring discharge quality within these thresholds, supporting a smoother Environmental Protection License (EPL) process for qualifying commercial and industrial sites.
Failing a CEA wastewater inspection can lead to remediation orders, fines, or delays in obtaining an Environmental Protection License (EPL) — a real risk for any factory, hotel, or apartment complex that discharges sewage on-site rather than into a municipal sewer network. Sri Lanka's environmental regulations exist because untreated or poorly treated effluent directly affects both public health and surrounding ecosystems, particularly near waterways and wells.
Why Industrial Sites Face Extra Scrutiny
Factories in particular are held to a higher standard than a typical household, since industrial wastewater can carry a heavier organic and chemical load depending on the manufacturing process.
Nithya Papers (Pvt) Ltd, a paper manufacturing facility in Poruwadanda, Horana, is a good example of the industrial category where wastewater treatment quality is directly tied to ongoing regulatory compliance — precisely the segment Parawewa's engineered biological process targets.
Key CEA Discharge Parameters to Understand
- BOD (Biochemical Oxygen Demand): Measures how much oxygen bacteria in the receiving environment would need to break down the discharged organic matter — lower is better.
- COD (Chemical Oxygen Demand): A broader measure of oxidizable material in the water, including non-biodegradable compounds.
- TSS (Total Suspended Solids): The amount of undissolved particulate matter remaining in the discharged water.
Because Parawewa's biological treatment actively digests organic solids before discharge rather than simply settling them, the resulting effluent is engineered to sit well within these commonly regulated thresholds — a key reason it is specified for commercial buildings, hotels, and apartment complexes where CEA compliance is a hard requirement, not just good practice. Site-specific lab test reports are provided by Parawewa on request to support the EPL application process.
