Wastewater and sewer management in Kenya is a problematic issue that needs stricter guidelines and initiatives for better and meaningful results. Waste water from hospitals, schools and other institution are among the leading environmental pollutants in the country, especially in urban areas. That means proper waste disposal methods are necessary and should be enforced to deal effectively with the menace by ensuring that the institution is equipped with the proper waste disposal tools and mechanisms. This proposal will discuss waste water from and how it should be effectively handled and value addition to ensure minimum environmental impact
Raw sewer wastewater (SWW) contains proteins, fats, high organic contents which includes feces, urine, fat, undigested food, grease &fats from the kitchens. microbial pathogens, suspended material, toxic compounds such as detergents, disinfectants, and biocides used for facility cleanings and tools cleanings.
Major characteristics required to match NEMA & WHO established standards for discharge to waterbodies.
WASTE WATER TREATMENT PROCESS (General Flow)
Sewage from washrooms → Pretreatment & Screening → Anaerobic Digestion → Equalization → Bioreactor (SBR/MBR) → Clarification → Disinfection (Chlorine/UV) → Clean Water Storage Tank.
Why Choose Blueflame Biodigesters?
1. Blueflame Energy Solution Ltd is the best wastewater and sewage treatment experts’ company in Kenya located in Nairobi.
Over the years Blueflame has become a household brand in designing, installations and maintenance of modern waste and sewage treatment systems.
2. Blueflame wastewater treatment and recycling systems are designed and developed as per the ministry of water and irrigation of the republic of Kenya final practice manual for sewage and sanitation services. Final effluent discharged meets the standard of environmental impact assessment (E.I.A) / NEMA requirements
3. We specialize in wastewater and sewer treatment plants design, installation, operation and maintenance.
4. We have a team of well-trained engineers and technicians to ensure we deliver professionally.
1. BZM SBR WASTE WATER TREAMENT PLANT
BMZ SBR SYSTEM OVERVIEW
The system has a series of steps through which incoming effluent undergoes to attain desired effluent quality by time of discharge summarized below.
Primary Screening: Traps indigestible waste from incoming sewage before entering primary tank.
Primary Settlement: provides effective primary settlement of effluent and also allows for anaerobic digestion to take place.
Anaerobic & aerobic microbial culture and required enzymes are dosed and mixed with the effluent at this stage.
Benefits of Sewage Waste Water Treatment & Stabilization Bacteria & Enzymes
1. Sludge volume will be reduced more as more solids are digested
2. Removes bad odor
3. Sludge will be easier to pump, process and dewater and will have less odor too
4. The capacity of the system will be effectively increased, because more waste can be processed, more effective in less time.
5. balance the treatment system
6. Bacterial oxidation of the liquid phase will be faster and more complete
7. Digesters will operate evenly and uniformly for easier planning and routine.
Sewage Waste Water Treatment Operations
Equalization: This is buffering process for peak influent loading into the plant providing desired stabilization on aeration process. provided to balance / smooth high levels of variations in the influent wastewater flows, expected during the peak flow periods.
Aeration: Introduction of air into the bioreactors breaking down the organic matter by aerobic digestion. The system combines both anaerobic and aerobic digestion to ensure optimal breakdown of organic matter before discharge into the environment.
Secondary Settlement/Clarification: allows for settlement of treated effluent from the bioreactors through aeration.
Disinfection disinfectant dosing system is required to disinfect the effluent before is released to the drainage.
Chlorination: Final treatment stage for effluent killing any present microorganisms before discharge to environment.
Uv light disinfection lamp
Desludging: returns settled sludge from the clarifier back to primary treatment zone from where treatment cycle can begin.
Control system to automize the treatment process.
Sizing Information
We are flexible to install any size from 4000 liters depending on the population and wastewater generated daily.
| MODEL | VOLUME | MAXIMUM FLOW DAILY | ESTIMATED POPULATION |
|---|---|---|---|
| BZM4-5PE | 4M3 | 500L | 5PE |
| BZM6-15PE | 6M3 | 1500L | 15PE |
| BZM8-20PE | 8M3 | 2000L | 20PE |
| BZM12-30PE | 12M3 | 3000L | 30PE |
| BZM 16-40PE | 16M3 | 4000L | 40PE |
| BZM24-60PE | 24M3 | 6000L | 60PE |
| BZM36-90PE | 36M3 | 9000L | 90PE |
| BZM40-100PE | 40M3 | 1000L | 100PE |
| BZM48-120PE | 48M3 | 12000L | 120PE |
LARGE SYSTEMS ARE AVAILABLE WITH ORDERS
Benefits of the SBR System
The system provides treated water as per NEMA Schedule 6 Guidelines which is suitable for irrigation use, and cleaning of cars, pavements and disposed to storm water drains. Table 1.0 Below
| PARAMETER | GUIDE VALUE |
| PH | 6.5-8.5 |
| Biological Oxygen Demand (5 days at 20 oC) | 30 (mg/L) max |
| Chemical Oxygen Demand | 50 (mg/L) max |
| Suspended Solids | 30 (mg/L) max |
| Ammonia –NH4 + Nitrate-N03 + Nitrite –N02 | 100 (mg/L) max |
| Total Dissolved Solids | 1200 (mg/L) max |
| E. coli | Nil/100 ml |
| Total coliform | 1000/100 ml |
| Color | Less than 40 hazens |
Table 1.0. NEMA Schedule 6 Requirements on BOD
1. Low electricity consumption.
2. Quiet operation.
3. No need of separating grey water from black water in case of sewer wastewater treatment.
4. The system eliminates use of an exhauster as is the case of septic tanks. Additionally, there is no need to worry about soak pit in the area filled with clay soils.
Applicable to all kinds of Waste Water Quality
1. Residential, apartments, institutions to municipal sewage.
2. Industrial wastewater, i.e. chemical, pharmaceutical, food processing, slaughter houses and other industries.
3. Suitable for high-protein and high-starch wastewater generated by food.
4. Industries such as freezing plants, canning plants, and beverage plants.
5. Wastewater generated by poultry farms and slaughterhouses.
6. Wastewater purification in alcohol production industries such as beer, malt, and rice wine factories.
7. Wastewater treatment generated by high-concentration alcohol-containing chemical plants.
8. Car wash wastewater
GET IN TOUCH