Water Treatment
As your trusted technology partner, we harness the latest global advancements and industry trends to deliver innovative solutions.
Through a worldwide network of collaborations with leading technology providers, ALT Nowata ensures our customers achieve cost-effective and efficient operation of their water systems.
With many decades of experience in water treatment and management, we bring a depth of experience and proven technology and offer unique African solutions.
Water Treatment Services:
- Full Risk Assessment Surveys: Legionella / potable water circuits etc.
- Plant Water Balances
- Consulting Services
- Plant Failure Investigations
- Disinfection of Cooling Water/Potable Water Circuits
- Descaling of Cooling Circuits
Water Treatment Equipment:
- Chemical Dosing Pumps
- Chemical Dosing Stations
- Tower Control Units
- Automatic TDS / pH / Redox Controllers
- Softening Plants
- Demineralizing Plants
- Reverse Osmosis Units
- Ultra-Filtration Units
- Filtration Units – sand / activated carbon / cartridge / bag etc
Boiler Water Treatment
- Boiler Feedwater Treatment Chemicals
- Fuel Additives
- Steam/Condensate Treatment Chemicals
- Internal Boiler Treatment Chemicals
Cooling Water Treatment
- Protect against Scaling
- Protection against Fouling
- Inhibiting Corrosion
- Inhibit biofouling and microbiologically-induced corrosion (MIC)
Water Clarification & disinfection
- Coagulants:
- Aluminium Sulphate
- Polyamines
- PAC
- Dimdac
- Blends
- Flocculants:
- Anionic
- Cationic
- Nonionic
- Liquids and powders
- Disinfectants:
- Chlorine (gas; liquid; powder
- Chlorine Dioxide
- Bromine
- Anti-Scalents / Corrosion Inhibitors -Approved for use in Potable Water Circuits
- Raw & Wastewater Treatment
Reverse Osmosis Chemicals
General guidelines for antiscalant application and dosing
The key to good RO operation is a well maintained pretreatment system.This not only requires maintaining all of the prefiltration system but also the addition of antiscalents, biocides etc. Residual flocculants and/or coagulants from upstream treatment can lead to problems when they combine with polymeric antiscalants. Avoid this problem by keeping the filters in good condition at all times and not overfeeding the flocculants/coagulants.
Antiscalant should be dosed upstream of the RO, typically before the cartridge filters. This assures adequate mixing of the antiscalant prior to entering the RO. Alternatively, inject the antiscalant and other treatments at least 10 pipe diameters before the high pressure pump or in a section of piping that has multiple bends and/or elbows.
This should be continuously dosed using a good quality proportional to flow dosing Take care when diluting solutions for use in “day tanks.” Proper measuring and mixing is a must in these circumstances. Be aware that dilution/day tanks often contribute to biological fouling. They must be kept clean and well maintained
