Frequently Asked Questions

Genoasis supplies a complete range including RO membranes (BWRO, SWRO, NF, UF, MBR, low-energy), FRP and composite pressure vessels, industrial pumps (centrifugal, multistage, submersible, borewell, AODD, sea water FRP, super duplex), filter cartridges, antiscalants and RO chemicals, sand and filter media, ion exchange resins, wastewater equipment (diffusers, MBBR media, tube settlers), UV and ozone disinfection, water quality instruments, valves and fittings, atmospheric water generators, and nanobubble generators.

We serve India (Chennai, Mumbai, Delhi, Bangalore, Hyderabad, Ahmedabad, Pune, Coimbatore and all major cities), the Middle East (UAE, Saudi Arabia, Qatar, Kuwait, Oman, Bahrain), and Africa (Nigeria, Kenya, South Africa, Ghana, Tanzania, Ethiopia, Egypt, Morocco). Our Chennai head office handles India and Africa exports; our UAE office handles GCC and Middle East supply.

We respond within 1 hour to all enquiries. Email info@genoasis.com, call +91 892 588 3227 (India) or +971 50 497 3835 (UAE), or use our contact form. For complex multi-product projects, detailed proposals with data sheets and lead times are issued as quickly as possible.

Yes. We source from ISO-certified global manufacturers. FRP pressure vessels carry NSF/ANSI 61 and ASME certification; UV systems meet NSF/ANSI 55; RO membranes are manufactured to international standards; chemicals are available with COA, MSDS, and food-grade certification. Full documentation provided with every order.

BWRO elements (TDS up to 10,000 ppm, 99.5%+ rejection), SWRO elements (TDS up to 45,000 ppm, 99.7%+ rejection), nanofiltration (NF) for hardness and colour removal, ultrafiltration (UF) hollow-fibre modules (MWCO 10,000–150,000 Da), MBR membranes for wastewater treatment, and low-energy RO elements. Sizes: 2.5", 4", and 8" diameter × 40" length.

With correct antiscalant dosing, regular CIP cleaning, and good pre-filtration, membranes last 3–5 years. Replace when normalised permeate flow drops >15%, salt rejection falls below 98% (BWRO) or 99.5% (SWRO), or pressure differential rises significantly. We supply membrane cleaners and antiscalants to extend service life.

Yes. We specialise in replacement elements for existing systems across India - Chennai, Mumbai, Delhi, Bangalore, Hyderabad, and beyond. Share your current membrane brand, model, and vessel configuration (4" or 8") and we'll recommend compatible replacements with fast delivery.

Vertical in-line multistage pumps are the standard choice - compact, high-head, energy-efficient. For SWRO high-pressure service, FRP or super duplex stainless steel (UNS S32750) pumps resist chloride corrosion in seawater. Contact us with your flow rate, head requirement, and feed water chemistry for a specific recommendation.

Yes. We supply 4" and 6" stainless steel borewell submersible pumps for groundwater extraction. Widely used in Tamil Nadu, Maharashtra, Gujarat, Rajasthan, and Andhra Pradesh where borewell water feeds RO treatment plants. Stainless steel hydraulics ensure long service life in abrasive sandy well conditions.

For high-TDS, high-hardness borewell water (1,500–8,000 ppm TDS) common across India, we recommend a phosphonate or polymer antiscalant dosed at 3–5 ppm. Our technical team can perform scale prediction modelling from your water analysis report and prescribe the optimal antiscalant and dose. Share your water report for a free recommendation.

Yes. Both acid CIP (citric acid, HCl blends, EDTA-based for scale/metal oxide removal) and alkaline CIP (caustic, SDS, enzyme-based for biofilm and organic removal). Available in 25 L, 200 L drum, and 1,000 L IBC totes.

SMBS (Sodium Metabisulphite) is a dechlorinating agent dosed into RO feed water to neutralise residual free chlorine before the membrane stage. Polyamide TFC RO membranes - the industry standard - are rapidly and irreversibly damaged by free chlorine above 0.1 ppm. SMBS is typically dosed at 3–5 mg per mg of chlorine, upstream of the cartridge filter. Genoasis supplies SMBS in granular and liquid form in 25 kg bags, 200 kg drums, and bulk quantities, along with inline chlorine analysers for continuous dosing verification.

Yes. RO membranes are susceptible to biological fouling - biofilm formation - which reduces permeate flow and salt rejection over time. Genoasis supplies non-oxidising biocides (DBNPA and isothiazolinone-based) for continuous low-dose dosing and for periodic shock treatment. We also supply alkaline enzyme-based CIP chemicals to remove established biofilms. Biocide selection depends on membrane material compatibility, feed water bacterial count, and the regulatory requirements of the end application.

Fine bubble disc and tube diffusers for aeration, MBBR/SAFF carrier media for biological treatment, tube settlers and lamella plate clarifiers for sedimentation, screw press and belt press dewatering machines, and coagulants and flocculants for chemical treatment - for municipal STP, industrial ETP, and water reuse applications across India, the Middle East, and worldwide.

MBBR (Moving Bed Biofilm Reactor) uses suspended HDPE carrier media on which bacteria grow to treat wastewater biologically. We supply media with surface areas from 300 to 1,200 m²/m³ for BOD, COD, nitrification, and denitrification applications. Widely used in India, the Middle East, and worldwide for ETP and STP upgrades.

We supply UV systems from 1–5 m³/h for drinking water and small process applications up to 1,000+ m³/h for large municipal water and wastewater treatment plants. All systems are designed to deliver a minimum UV dose of 40 mJ/cm² (NSF/ANSI 55 Class A). Contact us with your flow rate and application.

UV provides instantaneous chemical-free inactivation of bacteria, viruses, and protozoa (including Cryptosporidium and Giardia) without forming chlorination by-products. However, UV provides no residual protection in the distribution network - many plants use UV as the primary disinfection step followed by a low-dose chlorine residual for distribution protection.

TDS (Total Dissolved Solids) measures all dissolved minerals and salts in water, in ppm or mg/L. It is the primary factor in membrane selection: below 2,000 ppm - standard BWRO; 2,000–10,000 ppm - high-rejection BWRO; above 35,000 ppm - SWRO requiring 99.7%+ salt rejection. Feed TDS also drives operating pressure, energy consumption, and the antiscalant formulation needed. Share your water analysis report and Genoasis will recommend the right membrane and system configuration.

RO membranes are sensitive to particulates, chlorine, and scaling ions. Standard BWRO pre-treatment includes: multi-media or sand filtration to reduce turbidity below 1 NTU, a 5-micron cartridge filter as a safety barrier, antiscalant dosing to prevent calcium carbonate, sulphate, and silica scaling, and dechlorination using SMBS or activated carbon - polyamide RO membranes are irreversibly damaged by free chlorine above 0.1 ppm. SWRO systems additionally require coagulation, dissolved air flotation (DAF), and ultrafiltration pre-treatment at the seawater intake.

BWRO rejects 95–99.5% of dissolved salts at 8–25 bar; used for groundwater and municipal water up to 10,000 ppm TDS. SWRO rejects 99.7%+ at 55–80 bar; used for seawater desalination. NF (Nanofiltration) rejects divalent ions and large organics but passes monovalent salts; ideal for softening and colour removal. UF (Ultrafiltration) physically removes bacteria, viruses, and colloids through 10–150 nm pores but does not remove dissolved salts - widely used as RO pre-treatment and as a standalone purification step in municipal and industrial applications.

Pump selection depends on flow rate (m³/h), head (metres or bar), fluid properties (corrosiveness, TDS, temperature), and duty cycle. For BWRO high-pressure feed: vertical multistage pumps - compact, high-head, energy-efficient. For SWRO: FRP or super duplex stainless steel (UNS S32750) horizontal centrifugal pumps resist chloride corrosion at sea. For chemical dosing: AODD or peristaltic pumps for accurate low-flow dosing of corrosive chemicals. For borehole water extraction in India and Africa: 4" or 6" stainless steel submersible borewell pumps. Contact Genoasis with your flow rate, head, and water chemistry for a specific recommendation.

Yes. Food and beverage manufacturers require high-purity process water meeting food-grade and NSF standards. Genoasis supplies RO systems for boiler feed and process water, UV disinfection for production-line water, carbon block filters for taste and odour removal, and CIP chemical dosing systems. We serve food and beverage clients across India (Chennai, Mumbai, Pune, Bangalore) and the UAE (Dubai, Abu Dhabi, Sharjah), as well as manufacturers in Nigeria, Kenya, South Africa, and across the GCC.

Yes. Hotels and resorts in UAE, Saudi Arabia, Qatar, and Oman typically require RO systems for drinking water polishing, softeners for boilers and heat exchangers to prevent scale, and chemical dosing for cooling tower scale and corrosion control. Genoasis supplies hotel-grade RO systems, commercial UV disinfection units, scale and corrosion inhibitor dosing for cooling circuits, and water quality instruments throughout Dubai, Abu Dhabi, Riyadh, Doha, and Muscat.

Yes. Mining operations in South Africa, Ghana, Tanzania, and India face acid mine drainage (AMD) with low pH and high sulphate, high suspended solids in process water, and the need to recover and reuse water from tailings ponds. Genoasis supplies multi-media filters, pH correction and lime dosing systems, coagulation and flocculation chemicals, RO systems for sulphate removal and process water recovery, and UV disinfection for potable water supply at remote mine sites.

Yes. Drip and micro-irrigation systems require filtration to prevent emitter blockage - Genoasis supplies disc filters, screen filters, and sand media filters for this purpose. For brackish groundwater in arid regions of India (Rajasthan, Gujarat, Andhra Pradesh), Africa, and the Middle East, BWRO systems reduce TDS to levels suitable for crop irrigation. We also supply antiscalants to protect drip lines and flow meters for irrigation water usage monitoring.

The GCC and Middle East face some of the world's most demanding water treatment conditions: extremely high seawater TDS (up to 45,000 ppm) requiring SWRO desalination; high-salinity coastal aquifer groundwater; elevated ambient temperatures (25–35°C summer feed water) that accelerate scaling and reduce membrane life; silica and sulphate scaling in Gulf brackish water; and strict regulatory standards in UAE, Saudi Arabia, Qatar, Kuwait, Oman, and Bahrain. Genoasis supplies seawater-grade membranes, antiscalants formulated for Gulf chemistry, and high-pressure FRP and super duplex pumps specifically selected for these conditions.

Yes. Genoasis regularly supplies throughout the GCC - Saudi Arabia (Riyadh, Jeddah, Dammam, NEOM, KAUST), Qatar (Doha), Kuwait, Oman (Muscat, Salalah), and Bahrain. We supply RO membranes, FRP pressure vessels, antiscalants, pumps, and UV disinfection systems to desalination facilities, hotels, industrial plants, food and beverage manufacturers, and petrochemical companies. Our UAE office manages GCC export documentation, letters of credit, and delivery coordination across the Gulf.

For SWRO plants in the Gulf treating seawater at 38,000–45,000 ppm TDS, a phosphonate-polymer blend antiscalant formulated for high-temperature, high-salinity seawater is recommended, dosed at 2–4 ppm into the SWRO feed. Given Gulf water's high sulphate and elevated feed temperatures in summer, scale prediction modelling from your site's seawater analysis is essential before selecting a product. Genoasis provides free antiscalant selection and dosing guidance - share your water analysis and we'll respond within 1 hour.

Yes. Egypt is an active market for Genoasis - for Nile water treatment in municipal and industrial plants and for coastal SWRO desalination along the Mediterranean and Red Sea. Applications include BWRO for brackish Nile Delta groundwater (TDS 1,500–5,000 ppm), SWRO for Red Sea and Mediterranean coastal desalination (TDS 38,000–43,000 ppm), and multi-media filtration for Nile surface water pre-treatment. Genoasis ships to Alexandria, Port Said, and Suez and handles Egyptian import documentation including certificates of origin and commercial invoices in English and Arabic.

Yes. Genoasis exports water treatment equipment across the African continent - Nigeria, Kenya, South Africa, Ghana, Tanzania, Ethiopia, Egypt, and Morocco. We supply RO membranes, FRP pressure vessels, industrial pumps, antiscalants, UV disinfection systems, and wastewater treatment equipment to water treatment plants, industrial facilities, mining operations, food and beverage manufacturers, and NGO water projects across Africa. Shipping from our Chennai export hub reaches Lagos (Nigeria), Tema (Ghana), Mombasa (Kenya), Dar es Salaam (Tanzania), Djibouti (Ethiopia gateway), Durban and Cape Town (South Africa), and Alexandria (Egypt) in 15–25 days by sea.

African water sources present very different challenges by region. West Africa (Nigeria, Ghana): high-turbidity river water (Niger, Benue rivers), high iron and manganese in groundwater, fluoride in some aquifers, and high bacterial load requiring robust disinfection. East Africa (Kenya, Tanzania, Ethiopia): high fluoride in Rift Valley groundwater (often 3–10 mg/L, far above the WHO limit of 1.5 mg/L), high TDS borehole water, turbid surface water, and bacterial contamination in rural supplies. Southern Africa (South Africa): acid mine drainage (AMD) at mining sites with high sulphate and low pH, high hardness in Highveld groundwater, and ageing RO plants needing membrane replacement. North Africa (Egypt, Morocco): Nile water and coastal aquifer treatment for agriculture and industry, with high salinity along Mediterranean and Red Sea coasts. Genoasis tailors equipment selection to each region's water chemistry.

Yes. Borehole water is a primary water source across sub-Saharan Africa in Nigeria, Kenya, Ghana, Tanzania, and Ethiopia. Common issues requiring RO or specialised filtration include: high TDS (1,000–5,000 ppm in many African aquifers), high fluoride above WHO limits in Kenya's Rift Valley and Ethiopia, high iron and manganese common in Nigeria and Ghana, high hardness and alkalinity causing rapid scale build-up, and bacterial contamination. Genoasis supplies complete borehole water treatment packages - submersible pumps, multi-media pre-filters, iron and manganese removal units, brackish water RO systems, antiscalants, and UV disinfection - for both community water projects and industrial facilities across Africa.

Yes. Genoasis ships to all major African ports and inland destinations. West Africa: Lagos / Apapa (Nigeria), Tema (Ghana), Dakar (Senegal). East Africa: Mombasa (Kenya), Dar es Salaam (Tanzania), Djibouti (Ethiopia). Southern Africa: Durban and Cape Town (South Africa). North Africa: Alexandria and Port Said (Egypt), Casablanca (Morocco). We provide full export documentation - packing lists, certificates of origin, test certificates, MSDS, and SGS inspection certificates on request. Standard sea freight from our Chennai hub is 15–25 days to West and East Africa and 20–28 days to Southern Africa.

Fluoride contamination is a serious challenge in Kenya's Rift Valley and Ethiopia, where groundwater fluoride levels of 3–10 mg/L are common - far above the WHO limit of 1.5 mg/L. Effective defluoridation options include: activated alumina adsorption (reduces fluoride below 1 mg/L, regenerable with caustic soda), bone char adsorption for low-cost rural community applications, and BWRO or nanofiltration membranes which reject 90–97% of fluoride while also addressing TDS, hardness, and bacterial contamination in a single stage. For industrial and community water projects, Genoasis recommends a sediment pre-filter followed by a BWRO system for comprehensive safe water production.

Yes. South African mines face acid mine drainage (AMD) - characterised by low pH, high sulphate (commonly 1,000–3,000 mg/L), elevated iron, manganese, and arsenic - requiring lime dosing for neutralisation, coagulation and flocculation for metals precipitation, and RO for sulphate polishing. In West Africa (Ghana, Tanzania), gold and other mining operations need robust multi-media filtration, sedimentation systems, and potable water supply for workers at remote mine sites. Genoasis supplies chemicals, filters, RO systems, and water quality instruments for mine water treatment and regulatory compliance across Africa.