Municipal Water Treatment (Bicarbus Descaling)
Municipal Water Treatment (Bicarbus Descaling)
Restoring Capacity and Safety in Aging Water Mains
Many small- to mid-sized municipalities in Texas manage water networks with aging cast iron, ductile iron, or transite pipes. Over decades of service, mineral scale (mainly calcium carbonate) builds up inside these pipes, constricting water flow, lowering water pressure, and harboring bacterial biofilms.
To disinfect scale-filled pipes, cities often increase chlorine dosing, which reacts with organic materials to create harmful, carcinogenic byproducts called Total Trihalomethanes (TTHMs).
E3 provides Bicarbus chemical descaling and treatment services. Bicarbus is a safe, budget-neutral technology that dissolves mineral scale in-place, eliminates biofilms, improves water pressure, and helps municipalities comply with TCEQ drinking water standards.
How Bicarbus Descaling Works
1. In-Place Calcium Carbonate Dissolution Bicarbus is an eco-friendly, food-grade chemical treatment introduced into the municipal water supply in highly controlled concentrations. It reacts with the calcium carbonate scale, dissolving it back into soluble calcium and bicarbonate ions. This process slowly clears the interior of the pipes without the need for manual flushing or pipe excavation.
2. Elimination of Biofilms and Bacterial Harbors Mineral scale has a porous structure that acts as a shelter for bacteria, protecting them from chlorine disinfection. By dissolving the scale, Bicarbus strips away these bacterial harbors, exposing pathogens to standard disinfection and improving overall biological safety.
3. Reductions in Chlorine and TTHMs As the water mains are cleared of scale and organic biofilms, the water’s chlorine demand decreases. The municipality can reduce chlorine dosing while still maintaining the required disinfection residuals. Lowering chlorine levels directly prevents the formation of harmful TTHM carcinogens, bringing the city into compliance with environmental standards.
4. Improved Water Pressure and Flow Rates As the pipe’s internal diameter is restored, friction losses decrease, water pressure improves at customer meters, and fire hydrant flow rates increase to meet safety codes.
Sizing, Safety, and Environmental Compliance
Water safety is paramount, and chemical dosing must be managed with strict oversight. E3’s water engineers design every Bicarbus system to meet:
- NSF/ANSI Standard 60 Certification
We use only chemicals that are certified safe for drinking water. - TCEQ (Texas Commission on Environmental Quality) Approval
We secure all required state approvals and manage water quality monitoring during the descaling process. - Continuous Telemetry and Dosing Controls
We install automated chemical dosing pumps equipped with telemetry systems, adjusting chemical injection in real-time based on water flow rates.
Turnkey Project Implementation
Through our Design-Build process, E3 manages the entire descaling project:
1. Baseline Inspections:
Performing CCTV pipe inspections or flow testing to measure scale thicknesses.
2. Dosing System Installation:
Setting up chemical dosing equipment at water wells or pump stations.
3. Water Quality Monitoring:
Regularly testing water pressure, mineral levels, and chlorine residuals to verify progress.
4. Cooperative Procurement:
Pre-approved on BuyBoard and TIPS, E3 helps municipalities fast-track the procurement process without public bidding.
Frequently Asked Questions
Frequently Asked Questions
What is Bicarbus water descaling?
Bicarbus is an eco-friendly, NSF-certified chemical treatment designed to safely dissolve biomineralized scale inside aging municipal water mains. Rather than relying on physical scraping or high-pressure hydro jetting, Bicarbus is dosed directly into the water supply, where it breaks down calcium carbonate scale and clears pipes in-place.
How does dissolving mineral scale improve water safety?
Mineral scale has a porous structure that acts as a physical shield for bacteria and microbial biofilms, protecting them from standard chlorine disinfection. By dissolving this crust, Bicarbus eliminates these bacterial harbors, exposing the pathogens so they can be effectively neutralized, which significantly improves biological safety.
Can Bicarbus help reduce TTHM levels in our water supply?
Yes. Total Trihalomethanes (TTHMs) are harmful, carcinogenic byproducts that form when high levels of chlorine react with organic materials (like biofilms) in the water. Because Bicarbus clears out the organic waste and removes bacterial shields, the water’s overall chlorine demand drops. Municipalities can safely lower their chlorine dosing, which directly prevents the formation of TTHMs and aids in TCEQ compliance.
Will descaling improve water pressure for our residents?
Absolutely. Over decades, scale buildup dramatically narrows the internal diameter of cast iron and transite pipes, restricting water flow. As Bicarbus dissolves the blockage, the pipe’s original capacity is restored, reducing friction loss, increasing water pressure at customer meters, and improving fire hydrant flow rates.