Waste-water Treatment
We install onsite modular and scale-able, decentralized large volume (up to 2ML) wastewater treatment plants for the treatment of effluent or industrial wastewater to non-potable standards. Applications from re-use for sanitation flush water systems or irrigation, to reduced load discharge on macro infrastructure (useful for companies to keep their discharge BOD/COD’s reduced). This technology can help large developers in dealing with compliance and regulatory red tape procedures, to comply with capacity using zoning frameworks as set by municipalities.
This game changing technology in waste-water treatment can reduce load on the existing municipal macro sewerage infrastructure and contribute to improved turnaround times of entire build projects by helping developers with their compliance and regulatory issues. The potential cost savings to building owners and property management companies is real and combines with support services from our dedicated maintenance teams.
Keypoint water is proud to be getting behind Eco Tanks’ new Big Red – A new concept in wastewater treatment, using, tried and tested engineering know-how. After years of treating wastewater with their combination of old school underground septic and conservancy tanks, clever plumbing and mechanical know how, the team at Eco Tanks felt a need to respond to the demand for a packaged solution. They embarked on combining all the parts and processes of their successful wastewater treatment plants into one ‘plug & play’ unit, and made it available to South Africa in a fully modular packaged wastewater treatment plant, off-the-shelf and ready to install.
Choosing a Big Red Biological wastewater treatment plant helps to reduce you or your company’s carbon footprint and further conserve, our valuable natural water resource, while protecting fragile and delicate ecosystems across the country. In many instances, installing these systems save our client’s money by reducing their municipal water spend.
Features and Benefits
- Completely plug & play, modular Wastewater Treatment Plants
- Flowrates from 1lL/day – 400kL/day
- Domestic plants from 4 people to 12 people (garden cottages to large homes)
- Commercial/industrial custom designed systems up to 2000 people
- Manufactured using virgin LLDPE
- 100% recyclable
- Re-use every drop for irrigation, dust suppression, toilet flushing and many other applications.
- Treats combined grey and black “whole house” effluent
- Eco Tanks is SABS ISO 9001 2017 accredited
- Discharge parameters meet and exceed DWS general standards
- Below ground, above ground containerized for export
- Biological (AR, MBBR and RAS) process
- Ideal for remote estates, rural schools, clinics, hospital and urban developments
- No municipal sewer connection available? No problem
- Cost effective and efficient and solar compatible
- Access to sanitation is a right, not a luxury
How does the wastewater treatment system work?
The overall objective of the wastewater treatment plant is to provide a wastewater treatment system capable of treating a wide range of likely wastewater conditions, while complying with the performance requirements to meet or exceed the Department of Water and Sanitation’s requirements. The BIG RED® Process treats industrial or domestic wastewater in three steps:
- Anaerobic Digestion
- Aerobic Digestion
- Clarification and Disinfection
The anaerobic section reduces BOD loading of the waste stream up to 40% and provides a suitable retention time for further removal of organic solids. Multi-chambered septic tanks are used in this process. The aerobic section further reduces BOD and other harmful environmental elements.
The unit adopts the nutrient removal process – the conversion of nitrates and nitrites from the waste stream to nitrogen – a natural and safe occurring element. Lastly, the disinfection process kills any remaining pathogens, such as E. coli and fecal coliforms in the waste stream to provide a clarified effluent ready for any non-potable reuse options. Reuse options include irrigation, car washing and dust control, toilet flushing etc.
How does the biological breakdown process of the wastewater treatment plant work?
Primary Treatment is done in the custom designed, multi-chambered anaerobic reactors. The liquid capacity of these tanks is determined by the number of users connected to the unit. The anaerobic treatment process occurs in enclosed tanks to prevent access to oxygen. Here, solids are intercepted and biologically broken down by anaerobic microorganisms that are in contact with the waste stream. The longer this takes the better least twenty-four hours retention is required. The longer retention time translates into a higher quality effluent with significant biological, oxygen demand (BOD) reduction occurring before it flows into the biological reactor for secondary treatment.
Secondary Treatment is achieved in the aerobic biological reactor. In this process, oxygen is introduced into the reactor. The design of the secondary treatment process allows the wastewater to circulate and keep the biomass in suspension. Well-engineered bio-media with a large surface area is added to the bioreactor to facilitate the removal of organic solids and aid the nitrogen cycle. The system uses moving bed bioreactor technology. The micro-organisms metabolize the organic material into carbon dioxide and other environmentally stable end products.
The Tertiary Treatment process is a settlement and disinfection process. The treated wastewater is subjected to chlorination on the domestic treatment plants and ozone treatment on the larger and custom-built plants as a precautionary measure against pathogens that may have passed on from the second stage. This is effective due to the retention time and ensures ultimate pathogen neutralization. This is achieved with a pumping chamber that has a storage capacity of 1500 litres before being discharged for reuse. Get in touch with Keypoint Water for installation and maintenance of these fantastic systems.
A little summary into understanding the workings of the wastewater treatment plant
- The BIG RED® is a package “Biological Wastewater Treatment Plant”.
- The plant is designed for “domestic and/or industrial wastewater”.
- Influent is gravity fed from the house into the WWTP.
- This influent enters the primary tanks. These tanks act as “septic tanks” also known as the anaerobic or anoxic zone tanks. Here bacteria are at work breaking down the waste stream (organic matter) into a simpler state.
- As the new influent enters the plant, the stream is automatically (gravity fed / free flow) moved along into the next tank. This is the aerobic bio-reactor. Here air (oxygen) is introduced into the stream where particular bacteria continue the degradation of the waste stream.
- In this “zone”, these specialized bacteria require mainly 3 things – food, housing and oxygen. The stream containing organic matter is the “food”, the bio media is the “house”, and the aerators/diffusers supply the “oxygen”. If those elements are all in equilibrium and sufficient, the performance of the system and the resultant quality of the treated effluent will be greatly improved.
- From here, the influent moves into the penultimate tank where any “uneaten matter or missed matter” is re-directed by internal pumps and pipes back to the anoxic zone so the process can start all over again, kind of a back-up plan.
- Finally, the treated stream enters the last tank known as the Pump/Disinfection Chamber. This chamber is fitted with a submersible discharge pump connected to a float switch. As the stream reaches a certain volume in the tank, the pump activates and discharges through the in-line chlorinators and out via the sprinklers.
01.
Water System Design + Installation
We design, build, and install water and waste-water treatment systems and aim to deliver the best, most reliable systems using…
02.
Water System Operation + Maintenance
With our dedicated and experienced maintenance team, we specialize in managing and operating water systems of all sizes…
03.
Wastewater Treatment
We install onsite modular and scale-able, decentralized large volume (up to 2ML) wastewater treatment plants for the treatment of effluent or…
04.
Water System Storage + Collection
We introduce a-number-of mechanisms to catch water. Whether from a roof top (guttering), compact surface like a parking lot or driveway…
05.
Water Re-use + System Optimisation
We can save you money by optimising your buildings water reuse. We install reticulation systems to feed treated waste-water to the appropriate…
06.
Monitoring, Evaluation + Compliance
Using the latest technology in water monitoring and the “internet of things”, we ensure water quality and compliance monitoring in real time…
Need A Free Estimate?
Please contact us for a free water treatment system solution estimate, or even if you would just like to chat further about how we can assist you and your business on your water-wise journey.
Are you saving money with your water treatment system? If not, we’re glad you found us
If you or your company are looking for help with any aspect of your water treatment systems in South Africa, including management and cost savings, we can help. Whether you want to improve the taste of your municipal water or install an entire water treatment plant, we’re confident to put our name to our equipment and pride ourselves on our market leading back-up service.
Get in touch
066 246 2754