Avalanche Engineering designs and delivers comprehensive water treatment solutions — from municipal systems to industrial processes and residential applications.
Avalanche Engineering is a full-service water treatment and engineering company. We design, supply, install, and maintain water purification and treatment systems across municipal, industrial, and residential sectors.
From small residential filtration units to large-scale municipal treatment plants, our team of certified engineers delivers solutions built to last — compliant with all relevant standards and backed by lifetime support.
Design, supply, installation, and commissioning of fire hydrant networks for industrial complexes, residential estates, and commercial facilities.
Learn more →Installation and maintenance of overhead tanks, underground reservoirs, and elevated storage towers — sized and engineered for your demand.
Learn more →Full construction and ongoing maintenance of residential and commercial swimming pools — from design and tiling to water treatment and filtration systems.
Learn more →Professional borehole drilling, casing, pump installation, and ongoing maintenance. Reliable groundwater access for estates, farms, and commercial properties.
Learn more →Mechanical and electrical engineering including control panel design, installation, and maintenance for pumping stations and industrial facilities.
Learn more →Integrated estate services covering security systems, sewage treatment, garden maintenance, and general infrastructure upkeep for residential and commercial estates.
Learn more →A selection of completed projects across Nigeria — from borehole installations and fire hydrant systems to estate facility management and swimming pool construction.
Proud to have delivered projects for leading organisations across government, construction, hospitality, and industry in Nigeria.
Our free education centre explains water treatment processes, product options, and quality standards — so you can make informed decisions.
From design to commissioning to ongoing maintenance — we provide end-to-end water treatment services for every scale and sector.
We design, supply, install, test, and commission complete fire hydrant networks for industrial complexes, residential estates, commercial facilities, and public infrastructure — meeting NFPA and local fire authority standards.
Installation and maintenance of all types of water storage infrastructure — from small residential overhead tanks to large-capacity underground reservoirs and elevated steel towers. We handle civil works, structural installation, and pipework.
End-to-end swimming pool services — from structural construction and tiling to water treatment system design, equipment installation, and ongoing maintenance contracts. We serve residential properties, hotels, and recreational facilities.
Professional borehole siting, drilling, casing, screen installation, pump selection, and commissioning. We also provide scheduled maintenance, yield testing, and rehabilitation of existing boreholes across Nigeria.
Comprehensive M&E engineering including control panel design, fabrication, and installation for pumping stations, treatment plants, and industrial facilities. We handle electrical distribution, automation, and instrumentation.
Integrated estate facility management covering security systems, sewage and wastewater management, garden and landscaping maintenance, general infrastructure upkeep, and emergency response for residential and commercial estates.
Our engineers are available to discuss your water treatment needs and provide a detailed proposal.
Everything you need to understand how water is treated, what products are used, and what quality standards mean — explained clearly by our engineers.
Modern water treatment is a multi-stage process that systematically removes physical, chemical, and biological contaminants. Here is how each stage works and why it matters.
Raw water often contains fine suspended particles — clay, silt, organic matter — that are too small to settle on their own. Coagulation involves adding a chemical coagulant (typically aluminium sulphate or ferric chloride) that neutralises the electrical charges on these particles, causing them to clump together. The gentle mixing process that follows, called flocculation, encourages these clumps to grow into larger, heavier particles called "floc".
The choice of coagulant dose and pH is critical and varies by source water quality. Overdosing wastes chemical and can leave residual aluminium in treated water. Under-dosing leaves turbidity and colour unresolved.
After flocculation, water flows slowly through large sedimentation tanks (also called clarifiers). Gravity causes the heavy floc particles to sink to the bottom as sludge, while clearer water rises to the surface and overflows into the next treatment stage. This process removes the bulk of suspended solids — typically 60–80% of turbidity — before filtration begins.
Some modern plants use dissolved air flotation (DAF) instead — injecting microscopic air bubbles that carry floc particles to the surface, where they are skimmed off. DAF is particularly effective for algae-laden water.
Settled water passes through filter beds — layers of sand, gravel, and often anthracite or activated carbon — that trap remaining particles too fine to settle out. Rapid sand filters are the most common type in municipal treatment, capable of processing high flow rates. Slow sand filters also support biological filtration through a layer of microorganisms called the schmutzdecke that biologically degrades organics.
Membrane filtration (microfiltration, ultrafiltration) is increasingly used as a more absolute barrier — removing particles, protozoa like Cryptosporidium and Giardia, and even some viruses based on pore size alone.
Even after filtration, bacteria, viruses, and other pathogens may remain. Disinfection is the final kill step. Chlorination is the most widespread method globally — adding chlorine or chloramine that destroys microorganism cell walls. Chlorine also provides a disinfection residual throughout the distribution network.
UV disinfection uses ultraviolet light to damage pathogen DNA, preventing reproduction — without adding chemicals. Ozonation provides powerful disinfection and also oxidises taste and odour compounds. Many plants use a combination: UV or ozone as primary disinfection, with a low chlorine residual for distribution protection.
Treated water is adjusted to the correct pH (typically 7.0–8.5) before distribution. Corrosive water (low pH) will attack metal pipes and fittings, leaching lead and copper into drinking water. Alkaline water can form scale. Lime or caustic soda is typically added to raise pH; carbon dioxide or acid is used to lower it. Corrosion inhibitors such as orthophosphate may also be dosed.
For applications requiring ultra-pure water — pharmaceutical, electronics, boiler feed, or highly contaminated source water — reverse osmosis is employed. Water is forced under pressure through semi-permeable membranes with pores of approximately 0.0001 microns, rejecting dissolved salts, heavy metals, nitrates, fluoride, and most micro-pollutants. RO is also the core technology in seawater desalination plants.
RO requires thorough pre-treatment to prevent membrane fouling and scaling. A recovery rate of 70–85% is typical — meaning some water is lost as concentrate (reject). Energy consumption is higher than conventional treatment, though energy recovery devices have significantly reduced this in large installations.
Avalanche Engineering supplies, installs, and maintains a complete range of water treatment equipment — from standalone residential units to large industrial systems. Here is what each product does and how to choose the right one.
Pressure vessels filled with layers of gravel, sand, and anthracite that progressively remove suspended solids, turbidity, iron, and manganese from water.
Ion exchange resin systems that replace calcium and magnesium ions (hardness) with sodium ions, preventing limescale buildup in pipes, appliances, and industrial equipment.
Ultraviolet light reactors that inactivate bacteria, viruses, and protozoa by damaging their DNA — with no chemicals, no taste impact, and no disinfection by-products.
Semi-permeable membrane systems producing high-purity water by removing dissolved salts, heavy metals, nitrates, and micro-pollutants under applied pressure.
Precision peristaltic and diaphragm dosing pumps for adding coagulants, disinfectants, pH correction chemicals, and scale inhibitors at accurately controlled rates.
Granular activated carbon (GAC) filters adsorb chlorine, chloramines, taste and odour compounds, pesticides, pharmaceuticals, and organic micro-pollutants from water.
Water quality is defined by physical, chemical, and microbiological parameters. Understanding these parameters helps you know what your water treatment system must achieve and how to verify it.
Physical parameters describe the appearance and feel of water. Turbidity (cloudiness) is one of the most important — it indicates suspended particles and can shield microorganisms from disinfection. Colour, temperature, and taste/odour are also assessed. These are often the first signs of a problem.
Chemical parameters include pH, hardness, dissolved oxygen, total dissolved solids (TDS), nitrates, fluoride, heavy metals (lead, arsenic, mercury), and organic compounds. Each has a guideline value set by WHO or national regulators. Exceeding these can have serious health implications.
Microbiological safety is the most critical aspect of drinking water quality. Indicator organisms — E. coli, total coliforms, and Enterococci — are routinely tested. Their presence indicates faecal contamination and the potential presence of pathogenic bacteria, viruses, and protozoa such as Cryptosporidium and Giardia.
In Nigeria, water quality standards are set by the National Environmental Standards and Regulations Enforcement Agency (NESREA) and the Standard Organisation of Nigeria (SON). These align closely with WHO Guidelines for Drinking-water Quality. Our systems are designed to meet or exceed these standards.
| Parameter | WHO Guideline | SON Limit | Unit | Status |
|---|---|---|---|---|
| Turbidity | < 1 | < 5 | NTU | Safe |
| pH | 6.5 – 8.5 | 6.5 – 8.5 | — | Safe |
| Total Dissolved Solids | < 600 | < 500 | mg/L | Safe |
| Nitrates (NO₃) | < 50 | < 50 | mg/L | Monitor |
| Fluoride | 1.5 | 1.5 | mg/L | Monitor |
| Arsenic | 0.01 | 0.01 | mg/L | Monitor |
| Lead | 0.01 | 0.01 | mg/L | Monitor |
| E. coli | 0 | 0 | CFU/100mL | Safe |
| Total Coliforms | 0 | 0 | CFU/100mL | Safe |
| Residual Chlorine | 0.2 – 0.5 | 0.2 – 0.5 | mg/L | Safe |
Key terms explained clearly — so you understand what our engineers are talking about and what your system documentation means.
Our engineers can assess your source water quality and recommend the right treatment solution for your application.
Avalanche Engineering is a full-service water treatment and engineering company with over 18 years of operational experience. We were founded with one purpose: to make clean, safe water accessible to communities, industries, and households — through engineering that works.
From our base in Nigeria, we design, supply, install, commission, and maintain water treatment systems across the full spectrum of scale and application. Our projects include municipal treatment plants serving tens of thousands of people, industrial effluent systems for major manufacturers, and household filtration units for families who deserve better water quality.
Our team of 42 certified engineers brings expertise in process engineering, mechanical design, electrical systems, civil works, and water quality analysis. Every project we deliver is backed by comprehensive commissioning, operator training, and ongoing support.
We believe water treatment engineering should be transparent, practical, and built around the specific characteristics of the water being treated. There is no single solution. A borehole in Lagos has different challenges from river water in the Niger Delta or industrial effluent from a textile factory.
Every engagement begins with thorough source water analysis. We test before we design — because a system engineered around actual data will always outperform one built on assumptions. Our designs are modular and scalable, allowing systems to be expanded as demand grows without requiring complete redesign.
We are also committed to technology transfer. For every municipal and industrial project, we train the operators who will run the system long after our team has left the site. Clean water requires not just the right equipment, but the right people to maintain it.
We design only what the data supports. No overselling, no guesswork. Every specification is justified by water quality analysis and hydraulic calculations.
Clean water is a human right, not a commodity. We measure success not just in system performance, but in the health outcomes of the communities our systems serve.
We design for 20+ year operational lifespans. That means robust materials, accessible maintenance points, and documented systems that can be understood and serviced by future engineers.
Tell us about your project — we'll provide a detailed technical proposal at no cost.
Whether you have a project inquiry, technical question, or need emergency support — our team is ready to help.
Thank you for contacting Avalanche Engineering. One of our engineers will respond to your enquiry within one business day.