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Wastewater Treatment and Management
We are committed to addressing the critical issue of wastewater management, ensuring cleaner and safer water resources for local communities. Our waste management services provide comprehensive solutions for responsible waste disposal and resource recovery.
Providing Quality Waste Water Treatment Plants
Cominergy brings expertise in contracting for sewage treatment facilities. Prioritizing customer needs, we offer customizable, high-quality packaged sewage treatment plants designed for specific applications. These plants are not only robust but also easily transportable to any location within Africa. As an EPC contractor, our capabilities extend to enhancing the value of bulk sewage treatment projects in Africa.
Our various models of packaged waste water treatment plants
VARIOUS MODELS OF OUR PACKAGED SEWAGE TREATMENT PLANTS
We design various models for our Clients and these comprise of fully factory-built, modular units as well as partially factory-built and site erected plants representing combined activated sludge and clarification treatment plants. These rectangular-shaped plants are designed for easy site assembly, allowing modules to be bolted together based on flow requirements, catering to smaller flows of up to 300 m3/day. As an EPC contractor, our expertise enhances the value of bulk sewage treatment projects in Africa. Our project design incorporates hazardous area classification, optimal utilization of biogas, comprehensive mechanical and control systems, and instrumentation to ensure the highest financial returns. Key features of various model ranges include:
- Easy transport
- Heavy-duty construction
- Modular design
- Suitable for remote locations
- Simple installation
- Complete and ready for site assembly
- User-friendly operation
- Partially factory-built and site-erected
- Reduced lead times
- High-quality effluent
- Modular design
Model R Packaged Sewage Treatment Plants
The Model R ranges are partially factory built and site erected plants. These units are self-contained treatment plants that will treat most domestic wastewater and organic effluent.
The capital cost, land usage requirements and erection time of the Model R systems are greatly reduced compared to a conventional treatment plant.
The Model R plant is designed to run as an extended aeration activated sludge system and consist of two concentric circular walls.
It can be located above or below ground to suit gravity flow or other site conditions.
The plant retaining structures can be constructed from mild steel, concrete, or glass to steel fused tanks. The designed flow range is 150 m³/day to 3000 m³/day.
Key features include:
- Partially factory built and site erected
- Reduced lead times
- High quality effluent
- Modular
Alternative sewage treatment solutions
These include Trickle filters, Sequential Batch Reactors (SBR) as well as our Model M, which houses Moving Bed Biofilm Reactors (MBBR).
Trickle Filters are non-submerged media with attached growth-activated sludge and have been utilised in wastewater treatment for many years.
They can be constructed in any geometry – round or rectangular – to accommodate site conditions.
Higher flows can be facilitated by building tower structures to reduce the plant’s footprint. Primary sedimentation or septic tanks are installed ahead of the plant to reduce solids and COD loading. A secondary sedimentation tank after the reactor removes the biomass from the treated water, before being discharged at the applicable limit.
The plant retaining structures can be constructed from mild steel, concrete, or glass to steel fused tanks. The designed flow range is 150 m³/day to 3000 m³/day.
Trickle Filter Advantages
- Inexpensive capital costs
- Low energy requirements
- Simple operation
- Low sludge production
- Better shock load recovery
Sequential Batch Reactors (SBR) plants utilise suspended growth-activated sludge technology in a batch process.
Initially, the reactor is filled with screened wastewater. Aeration and mixing then takes place, followed by clarification and finally decanting. All these unit processes occur in the same tank and there is therefore no need for recycle streams, etc. The phases are controlled to optimise each cycle of the process by means of a PLC.
In most cases, wastewater is continuously fed to a treatment plant. The plant will need to be configured accordingly, as the SBR is batch treatment system. This typically involves the addition of a second treatment tank and/or buffer tank.
The Moving Bed Biofilm Reactor (MBBR) plant operates as an attached growth-activated sludge system. This entails the presence of plastic packing media in the aeration tank, facilitating the growth of biofilm. The aerobic zone is effectively mixed through air introduction, ensuring the continuous suspension of the packing media.
The MMBR Model plant offers the advantage of reduced aeration tank sizing, attributed to higher biomass concentrations. Additionally, it boasts an enhanced nitrification rate for effective denitrification, thanks to the incorporation of an additional anoxic zone in the biofilm.
For proper operation, the MMBR Model plant necessitates an initial screen or sedimentation/septic tank for solid removal. Subsequently, a secondary sedimentation tank following the reactor clarifies the effluent before its discharge.
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