Global Hub for Activated Carbon & Mineral Filter Media
Repuls Internationals manufactures and distributes premium-grade steam-activated carbon, graded filtration minerals, and copper slag blasting abrasives compliant with rigorous ASTM, AWWA, and ISO standards for municipal, healthcare, and global industrial systems.
Filtration Engineered for the Continuity of Life and Industry
At Repuls Internationals, we operate with the profound understanding that clean water and sustainable environments sustain every community and manufacturing process. With over 15 years of manufacturing excellence in high-efficiency filtration media, premium activated carbon, and specialized facility services, we deliver proven materials engineered for uncompromised performance.
Engineered for maximum specific surface area, consistent particle size distribution, and chemical durability across critical liquid and vapor phase systems.
Activated Carbon
High-adsorption activated carbons manufactured from steam-activated coconut shell, bituminous coal, and chemically treated hardwood feedstocks.
Manufactures of Water Treatment Plants & Lab Instruments
Repuls Internationals deals purely in Water Treatment Plants and engineering services. With over 15+ years of dedicated experience in Water Treatment Plants and Water Purification Systems, we design, commission, service, and upgrade turnkey water installations while supplying complete consumable materials and laboratory testing instruments.
RO-SRV
RO Plant Service
Turnkey commissioning, membrane cleaning, and scheduled maintenance for commercial & industrial Reverse Osmosis systems.
STP-SRV
STP Plant Service
Sewage Treatment Plant aeration tuning, blower servicing, biological media replenishment, and discharge compliance.
ETP-SRV
ETP Plant Service
Effluent Treatment Plant coagulation, flocculation, COD/BOD reduction, and sludge dewatering for factories.
WTP-SRV
WTP Plant Service
Water Treatment Plant filtration bed revamping, multiport valve servicing, and pressure vessel recertification.
WWT-SRV
Waste Water Treatment
Comprehensive industrial wastewater recycling, clarification, and reuse system engineering.
ZLD-SRV
ZLD Plant Service
Zero Liquid Discharge evaporator maintenance, MVR/MEE tuning, and crystallization optimization.
IRP-SRV
Iron Removal Plants
Birm and manganese dioxide catalytic oxidation systems for groundwater iron and turbidity elimination.
MWP-SRV
Mineral Water Plants
Commercial packaged drinking water lines with micron filtration, ozonation, and remineralization dosing.
SFT-SRV
Softener Service
Ion exchange water softener resin regeneration, brine tank cleaning, and automatic multiport servicing.
IRO-SRV
Industrial RO Service
High-pressure booster pump servicing, CIP chemical descaling, and high-recovery brackish water RO audits.
UPG-SRV
Upgradation STP & RO
Capacity debottlenecking, retrofit of MBBR/MBR modules, and low-energy membrane upgrades for existing plants.
LAB-SRV
Lab Instrument Service
Calibration, maintenance, and precision servicing for water testing laboratory spectrophotometers, TDS, and pH meters.
Cartridge FilterFiltration Consumables
Antiscalant ChemicalRO Pre-Treatment
Filtration MediasSand, Anthracite & Silex
Treatment ChemicalsCoagulants & Polymers
UV Lamp & QuartzDisinfection Systems
RO MembranesDesalination & Brackish
High Booster PumpPressure Equipment
pH BoosterWater Chemistry
Activated CarbonGranular & Pelletized
Ion Exchange ResinCation, Anion & Mixed Bed
Flow Meter (Digital)Instrumentation
Ozonator SystemAdvanced Oxidation
CIP Cleaning ChemicalMembrane Descaling
Laboratory GlasswareLab Testing
Taste MineralsRemineralization Salts
pH ReducerWater Chemistry
Authorized Engineering & Commercial Desk
"We trust the above would meet your requirements and we now look forward to receive your valuable order."
Lead Representative: Kalidoss • Technical Head, Repuls Internationals
Beyond filtration media and water engineering, Repuls Internationals provides certified pest management solutions designed to maintain clean, hygienic, and pest-free environments for residential, commercial, and industrial facilities across Chennai.
Providing high-performance media, precision adsorbents, and specialized environmental services engineered to meet rigorous sector-specific demands.
Water Treatment
Removing chlorine, organic compounds, and micropollutants from municipal and industrial streams.
Gold Recovery
High-hardness coconut carbon for Carbon-In-Leach (CIL) and Carbon-In-Pulp (CIP) circuits.
Air & Gas Purification
Effective removal of VOCs, odors, and harmful gases in industrial HVAC and solvent recovery.
Food & Beverage
Decolorization and purification of oils, juices, and syrups using food-grade wood carbon.
Pharmaceuticals
High-purity carbons for API purification and removal of unwanted by-products in chemical synthesis.
Petrochemicals
Catalyst carrier and purification of process fluids in refining and petrochemical manufacturing.
Marine & Shipyards
High-density copper slag abrasive blasting for steel hull rust removal conforming to ISO 8501-1 Sa 2.5.
Commercial & Facilities
Integrated pest management, termite barriers, and hygiene sanitization for hospitality and corporate parks.
Quality Assurance & Global Compliance
Certified Quality & Industry Standards
Repuls Internationals manufactures and supplies industrial filtration media, activated carbons, and abrasive minerals strictly audited against leading global quality frameworks.
Quality System
ISO 9001:2015 Quality Management
Standardized quality management protocols covering raw feedstock inspection, steam activation control, precision mesh grading, tamper-evident packaging, and international container stuffing.
ASTM International
ASTM Laboratory Testing Standards
Batch-tested in accredited laboratories for ASTM D4607 (Iodine Number), ASTM D3802 (Ball-Pan Hardness), ASTM D2854 (Apparent Density), and ASTM D2867 (Moisture Content).
AWWA Compliant
AWWA B604 & B100 Standards
Full conformance with AWWA B604 for Granular Activated Carbon and AWWA B100 for Granular Filter Media (Anthracite, Quartz Sand, and Supporting Gravel layers) for municipal water clarification.
ISO 8501-1 Cleanliness
ISO 8501-1 Sa 2.5 / 3.0 & ISO 11126-3
Synthetic iron silicate copper slag blast abrasive compliant with ISO 11126-3 (<0.1% free crystalline silica), producing aggressive 50–100 micron anchor tooth profiles for heavy marine coatings.
IS 8419 (BIS)
Bureau of Indian Standards (IS 8419)
Precision-graded quartz silica sand, silex, and pebbles processed to strict effective size (ES) and uniformity coefficient (UC < 1.35) criteria in compliance with IS 8419 guidelines.
100% Traceability
Batch Certificate of Analysis (COA)
Every single commercial dispatch is accompanied by an authorized Certificate of Analysis detailing certified batch test metrics, particle sieve curves, and full manufacturer quality warranty.
Need Batch-Specific Test Certificates or ASTM Audit Reports?
Our quality assurance department provides formal Certificate of Analysis (COA) and Technical Data Sheets (TDS) for corporate qualification and tender compliance.
Enterprise Clientele & Project Track Record
Completed & On-Going Projects
Leading industrial conglomerates, infrastructure developers, and institutional facilities rely on Repuls Internationals for high-purity media, active adsorbents, and specialized environmental services.
Enterprise Value & Operational Distinction
Why Choose Repuls Internationals?
Combining over 15 years of chemical filtration engineering, stringent ASTM/AWWA laboratory verification, and strategic global port dispatch capabilities.
01
ASTM & AWWA Verified Purity
Every batch of Activated Carbon and Mineral Media undergoes rigorous testing for Iodine Value, Ball-Pan Hardness, Uniformity Coefficient, and Sieve Analysis, backed by full Certificate of Analysis (COA).
02
Direct Manufacturer Pricing
Direct manufacturing and bulk processing eliminates trader markups, providing plant contractors and municipal utilities with maximum cost efficiency on metric ton orders.
03
Technical Sizing & Media Audits
More than just raw media supply—our senior technical specialists provide vessel sizing, bed depth calculations, adsorption kinetics modeling, and media replacement audits across India.
04
Strategic Port Logistics
Headquartered in Chennai with immediate proximity to Chennai Port (INMAA), Ennore (INENR), and Tuticorin (INTUT), ensuring rapid 20ft/40ft FCL container stuffing and global export dispatch.
05
Custom Formats & Gradings
Tailored mesh sizes (4x8 to 20x50), extruded pellet diameters (1.5mm to 4mm), acid-washed ultra-low ash grades, and precision-graded sand & gravel to meet exact vessel specifications.
06
Dedicated Technical Helpdesk
Direct engineering access with Kalidoss and our senior technical team for immediate adsorption kinetics guidance, breakthrough curve estimates, and emergency plant media replacements.
Technical Specifications & Standards
Frequently Asked Engineering Questions
Direct authoritative answers compiled according to ASTM, AWWA, and ISO standards for process engineers and procurement managers.
Direct Answer: Repuls Internationals manufactures and supplies high-adsorption Activated Carbon (Coconut, Coal, Wood), Mineral Filter Media (Anthracite, Silica Sand, Silex), and Copper Slag primarily for municipal drinking water purification, gold recovery (CIL/CIP), industrial effluent treatment (ETP/STP), food & beverage decolorization, and heavy marine blasting.
Our materials satisfy ASTM D4607, AWWA B100, and IS 8419 criteria. Key application sectors include:
Potable Water & Dialysis: High-iodine (>1100 mg/g) coconut shell carbon for catalytic dechlorination and organoleptic taste polishing.
Industrial Clarifiers: Dual-media deep-bed filtration beds removing turbidity down to <0.2 NTU and SDI <2.4.
Shipyards & Petrochemicals: Low-dusting copper slag abrasive achieving Sa 2.5 and Sa 3.0 near-white metal blast profile.
Direct Answer: Anthracite filter media has a lower specific gravity (1.4 – 1.6 g/cc) compared to Quartz Silica Sand (2.65 g/cc), allowing it to naturally settle on top of the sand layer following hydraulic backwashing.
This creates an ideal coarse-to-fine porosity gradient. The upper angular anthracite layer traps large floc and coarse suspended solids with minimal headloss, while the underlying fine quartz silica sand captures remaining micron particulates down to 10–20 microns. This dual-action design extends filtration run times by up to 200% compared to single-layer sand filters.
Direct Answer: Copper Slag contains virtually zero free crystalline silica (<0.1%), eliminating the severe risk of occupational silicosis associated with river sand blasting, while cutting steel surfaces up to 3x faster due to its higher density and sharp angular morphology.
With a Mohs hardness of 7.0 and high specific gravity (3.5 g/cc), Repuls Copper Slag generates an aggressive 50–100 micron surface anchor pattern meeting ISO 8501-1 Sa 2.5 and Sa 3.0 standards, ensuring superior adhesion for epoxy and polyurethane marine coatings.
Geographic Hub (GEO): Repuls Internationals is headquartered at 41, Railway Station Road, Near St. Thomas Mount Railway Station, Alandur, Chennai – 600 016, Tamil Nadu, India, with primary export dispatch operations routed through Chennai Port (INMAA), Kamarajar / Ennore Port (INENR), and V.O. Chidambaranar / Tuticorin Port (INTUT).
Our proximity (under 25 km) to major container freight stations enables rapid 48-hour container stuffing, customs clearance, and direct ocean liner dispatches to Jebel Ali (Dubai), Port of Singapore, Colombo, and European hubs on FOB, CIF, or CFR Incoterms.
Direct Procurement
Speak with Our Technical Specialists
Office & Facility:41, Railway Station Road, St. Thomas Mount Railway Station Near, Alandur, Chennai – 600 016, Tamil Nadu, India.
