Rudra Technologies & Engineering Consultancy (RTEC) designs water, effluent and sewage treatment plants, audits how industry uses water, and supports plants from feasibility to commissioning and O&M.
Conceptual treatment plant · intake to reuse
RTEC is an independent engineering consultancy for water and wastewater. We develop technically robust and commercially practical treatment solutions for industry, from the first water audit to a running plant.
We do not sell equipment, so every recommendation follows your water analysis, site and discharge or reuse target. One multidisciplinary team covers process, mechanical, piping, electrical and instrumentation engineering, then stays on for commissioning and O&M.
Most treatment schemes follow the same sequence. The engineering is in sizing each step for your water and your discharge or reuse target. Values shown are indicative for a typical industrial effluent.
Raw water & effluent
Surface water, borewell, sewage or process effluent. We characterise the stream first: flow, load and how both vary across shifts and seasons.
Biological treatment & clarification
Screening and equalisation even out the load; ASP, MBBR or MBR break down the organics, and clarifiers settle the solids as sludge.
Filtration & ultrafiltration
Pressure filters and UF remove residual suspended solids and protect the membranes downstream. Sludge is thickened and dewatered for disposal.
Reverse osmosis
RO separates dissolved salts into a concentrated reject stream, which goes on to MEE and ATFD where zero liquid discharge is required.
Reuse
Permeate returns as cooling tower make-up, boiler feed or process water, reducing the fresh water drawn from source.
Engage us for a single audit or for the whole plant. The same engineers carry the design from the first water balance to commissioning and operation.
Source, load and salinity decide the treatment train. We design around the water analysis, then the equipment.
River, canal and reservoir sources. Turbidity and colour swing with the monsoon, so clarification carries the load.
300mg/L TDS
BOD 150–300 and COD 300–600 mg/L. Biological treatment, then tertiary polishing for reuse.
900mg/L TDS
Hardness, silica and iron set the pre-treatment ahead of softening or RO.
1,500mg/L TDS
COD from 1,000 to over 20,000 mg/L by process. Segregation and equalisation decide the scheme.
4,000mg/L TDS
Concentrated salts and antiscalant. Recovery RO, MEE and ATFD where zero liquid discharge applies.
15,000mg/L TDS
Brackish 2,000–10,000 mg/L, seawater 35,000 and above. Pre-treatment protects the membranes.
35,000mg/L TDS
Indicative TDS for typical streams; bars on a logarithmic scale. Every source differs, so we sample and analyse before we size.
Client names are withheld under confidentiality. Capacities, streams and our scope are as delivered.
Numbered pins match the project cards.
500KLD
12MLD
212MLD
31,200KLD
41.8MLD audited
5Identified reuse potential of 22% of fresh water intake
10MLD
6We carry no vendor mandates. The treatment train is chosen on water analysis, discharge or reuse target, footprint, and the power and chemicals available at site.
| Technology | Clarification & filtration | Ultrafiltration | Reverse osmosis | MBR | MEE & ATFD |
|---|---|---|---|---|---|
| Removes | Suspended solids, turbidity, colour | Colloids, bacteria, fine solids | Dissolved salts, silica | BOD, COD, suspended solids | Dissolved solids, to salt |
| Typical product | <5 NTU | SDI <3 | 95–99%salt rejection | BOD <5 mg/L | Condensatefor reuse |
| Water recovery | 95–98% | 90–95% | 65–80% | >95% | 90–95% |
| Power, kWh/m³ | 0.05–0.1 | 0.1–0.3 | 0.6–1.5brackish; 3–4 seawater | 0.6–1.2 | 20–35MVR, or steam-driven |
| Typical fit | Surface water, RO pre-treatment | RO pre-treatment, tertiary reuse | Reuse, boiler feed, desalination | Sewage and effluent reuse, tight footprint | RO reject, ZLD mandates |
Indicative ranges for comparison. Final selection follows a site-specific water analysis, mass balance and life-cycle cost.
Process, mechanical, piping, electrical and instrumentation engineering in one team.
No vendor ties. Treatment technology is selected on project requirements, not on a catalogue.
Designs built around real operating conditions: variable loads, shutdowns and operator skill.
From concept and design through execution, commissioning and operation.
Water recovery, energy efficiency and resource recovery weighed together, not one at a time.
Constructability, operability, maintenance access and lifecycle cost designed in from the start.
How recovery RO, evaporators and dryers share the load, and where the operating cost really sits.
Segregation, pre-treatment and recovery targets that decide whether a recycling plant keeps running.
SDI, fouling and the pre-treatment choices that set membrane life and cleaning frequency.
Metering, water balance and the reuse opportunities most plants overlook.
Also: biogas & CBG consultancy. Feasibility, process design and engineering for compressed biogas plants.
Discuss a CBG projectShare your water source or effluent, location and target capacity. An engineer, not a sales team, replies within two working days.
Hyderabad, Telangana, India
