Termez State University (TerSU) implements an institutional wastewater collection, treatment, monitoring and reuse system covering five university campus sites. The system operates under the university's Water Reuse and Sustainable Water Management Policy and Water Pollution Control and Wastewater Management Policy.
1. Wastewater Collection and Treatment
Wastewater generated by academic buildings, administrative facilities, student dormitories, laboratories, canteens and sanitary facilities is collected through the university's internal sewerage network and transferred to the authorised Termez municipal wastewater treatment system.
The municipal treatment process consists of three stages:
- Mechanical treatment: Screening and grit removal to eliminate solid waste and physical impurities.
- Biological treatment: Biological decomposition of biodegradable organic pollutants.
- Tertiary treatment: Nutrient control, filtration and disinfection to improve the quality of treated effluent.
The university prohibits direct discharge of untreated wastewater into soil, irrigation canals, stormwater channels and surface-water bodies.
2. Measurable Wastewater Treatment and Reuse Results (2025)
|
Indicator |
2025 result |
|
Treated wastewater reused |
36,700 m³ |
|
Collected rainwater reused |
7,800 m³ |
|
Total recycled water, including rainwater |
44,500 m³ |
|
Green areas receiving recycled water |
12.6 hectares |
|
Permanent drip and sprinkler irrigation coverage |
4.2 hectares |
|
Rainwater storage reservoirs |
3 units |
|
Combined rainwater storage capacity |
143 m³ |
Treated wastewater accounted for approximately 82.5% of the university recycled-water volume (36,700 m³ out of 44,500 m³).
The treated wastewater was used for approved non-potable applications, including landscape irrigation, green-area maintenance, outdoor cleaning, dust control and selected technical operations. It was not used for drinking or food preparation.
3. Water Quality Monitoring and Pollution Prevention
TerSU maintains six designated water-quality monitoring points, including three wastewater monitoring locations:
- MP-01: Main Campus wastewater outlet.
- MP-02: Northern Campus sewer connection.
- MP-03: Western Campus sewer connection.
The three additional points monitor rainwater, irrigation or spring water, and selected drinking-water distribution infrastructure.
The university's documented monitoring programme provides for:
- Monthly inspections of sewer lines, inspection chambers and drainage infrastructure (12 scheduled inspection rounds annually).
- Quarterly laboratory monitoring at the main wastewater outlet (4 scheduled rounds annually).
- Semi-annual inspections of campus sewer connections, with additional inspections following incidents.
- Additional sampling following spills, overflows, complaints or abnormal conditions.
Laboratory monitoring covers pH, biochemical oxygen demand (BOD₅), chemical oxygen demand (COD), total suspended solids, nitrate, phosphate, oil and grease, and relevant microbiological indicators.
4. Institutional Environmental Protection Measures
The university maintains separate wastewater and stormwater management systems. Rainwater is collected through dedicated drainage infrastructure, while sanitary wastewater is directed into the municipal sewerage system.
Laboratory chemicals, concentrated acids, solvents, oils and heavy-metal-containing substances are prohibited from uncontrolled discharge into sinks or drainage systems.
The programme includes documented corrective-action procedures for leaks, blockages, wastewater overflows, chemical spills and abnormal monitoring results.