Water Treatment Chemicals

Hydromax supplies a comprehensive portfolio of water treatment chemicals sourced from leading manufacturers and formulated for performance in municipal, industrial, and process water applications. Each product is selected for compatibility with your treatment system and effluent targets.

From coagulants that clarify raw water to antiscalants that protect RO membranes, our chemical supply programmes are backed by technical support and on-site dosing optimisation.

Coagulants & Flocculants Antiscalants Corrosion Inhibitors Biocides & Disinfectants

Coagulants & Flocculants

Clarification

Overview

Inorganic coagulants (alum, ferric sulphate, PAC) and organic polymer flocculants that destabilise and aggregate suspended colloidal particles for efficient sedimentation and filtration.

  • Wide selection for varying turbidity, colour, and alkalinity
  • Liquid and powder grades for different dosing systems
  • Jar test and pilot support for optimal dose selection

Antiscalants

Membrane protection

Overview

Scale inhibitor formulations that prevent carbonate, sulphate, silica, and metal oxide scaling on RO membranes, heat exchangers, and cooling water systems—extending equipment life and maintaining performance.

  • ASTM D4582 and NACE-approved membrane-compatible formulas
  • Effective at low dose rates to minimise operating cost
  • Tailored to your feedwater LSI and concentration factor

Corrosion Inhibitors

Asset protection

Overview

Film-forming and passivating corrosion inhibitors for cooling water, boiler water, chilled water, and closed loop systems—protecting carbon steel, copper, and galvanised surfaces against electrochemical attack.

  • Phosphonate, molybdate, and organic inhibitor options
  • Compatible with biocide and scale inhibitor programmes
  • Dosing calibrated to system volume and makeup water quality

Biocides & Disinfectants

Microbiological control

Overview

Oxidising and non-oxidising biocide programmes that control bacteria, algae, Legionella, and biofilm in cooling towers, process water circuits, and storage systems.

  • Chlorine, bromine, and non-halogen DBNPA options
  • Slug and continuous dosing protocols for effective kill
  • Supported by water testing and Legionella risk compliance

Process Chemicals

Chemical products and dosing solutions that optimise biological treatment, control foam, and adjust water chemistry for stable, efficient plant operation.

Acid & alkali dosing

pH Adjustment Chemicals

Sulphuric acid, hydrochloric acid, caustic soda, soda ash, and lime slurry systems for raising or lowering pH in treatment plant influent, effluent neutralisation, and process water conditioning.

Hydromax pH correction systems include day tanks, metering pumps, inline pH probes, and PLC-based controllers that automatically maintain your setpoint regardless of flow and influent variability.

pH adjustment dosing system

Specialty Chemicals

Targeted chemical products for specific equipment protection and treatment circuit requirements—formulated for performance in demanding industrial environments.

01

RO Membrane Cleaners

Alkaline and acid CIP (clean-in-place) chemicals formulated to remove biological fouling, organic deposits, and mineral scale from reverse osmosis and nanofiltration membranes—restoring flux and salt rejection to design values.

Hydromax membrane cleaning programmes include the right chemical sequence, concentration, temperature, and contact time for your specific foulant profile, minimising membrane degradation and maximising cleaning effectiveness.

RO membrane cleaning chemicals
02

Boiler Treatment Chemicals

Complete boiler water treatment programmes combining oxygen scavengers (sodium sulphite, DEHA), alkalinity builders, scale inhibitors, and condensate line filming amines to protect steam generating plant from corrosion and scale.

Our boiler chemical programmes are designed to meet ASME, BS 2486, and BG04 water quality guidelines, with regular water testing and dosage adjustment to maintain compliance as load and feedwater conditions vary.

Boiler treatment chemicals
03

Cooling Tower Chemicals

Integrated cooling water treatment programmes combining scale inhibitors, corrosion inhibitors, and biocides to control deposits, protect system metallurgy, and prevent Legionella growth in open recirculating cooling towers.

Hydromax cooling programmes include automatic dosing systems, conductivity-based blowdown controls, and routine water analysis reports to demonstrate treatment efficacy and regulatory compliance.

Cooling tower treatment
04

Sludge Conditioning Chemicals

Chemical conditioning programmes for municipal and industrial sludge dewatering—including lime, ferric chloride, and polyelectrolyte combinations that improve cake dryness, reduce filtrate BOD, and lower disposal volumes.

We size conditioning chemical doses based on sludge volatile solids, dewaterability index, and target cake dry solids content, with on-site optimisation to minimise chemical cost per tonne of cake produced.

Sludge conditioning chemicals

Chemical Dosing Systems

Engineered dosing packages that ensure precise, reliable chemical addition—from simple manual systems to fully automated, flow-paced dosing skids with remote monitoring.

Chemical dosing pumps

Dosing Pumps & Controllers

Diaphragm and peristaltic metering pumps with manual, 4–20 mA, and pulse-input control—available as standalone units or integrated into multi-chemical skid packages with individual flow monitoring.

Chemical storage and safety

Chemical Storage & Safety

GRP, HDPE, and stainless steel day tanks with secondary bunded containment, level controls, and safety systems designed to COSHH, DSEAR, and chemical storage regulations for safe handling of acids, alkalis, and disinfectants.

Automated dosing systems

Automated Dosing Systems

PLC-controlled flow-paced dosing skids with inline analysers, HMI touch screens, and data logging—ensuring consistent chemical concentration regardless of plant flow variation and eliminating manual intervention.