Processing Equipment
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Water Treatment
Water Treatment for Cosmetic, Skin-Care and Personal-Care Production
We supply single-pass and two-pass RO systems, with RO + EDI combinations configured for your source water and product-water specification. Our RO reference sizes span approximately 500–20,000 L/h, with storage, transfer and control options assessed around formulation, rinsing and cleaning duties.
Output and water quality are separate selection decisions. Start with the required volume, then choose the treatment route that can meet the defined quality target under the available feed-water conditions.
Pretreated feed water passes through one RO purification step. Evaluate this configuration when one pass can meet the required product-water specification for your source water.
Selection: Compare source-water analysis and target product-water conductivity.
Discuss a Single-Pass RO SystemPermeate from the first RO pass feeds a second RO pass for further reduction of dissolved ions. This double-pass arrangement is a separate purification step, rather than concentrate recirculation through the same pass.
Selection: Compare the conductivity target with the additional equipment, electrical load and overall water balance.
Discuss a Two-Pass RO SystemAn electrodeionization module polishes RO permeate to reduce remaining dissolved ions. The upstream RO arrangement and EDI inlet requirements are assessed together; EDI is not a third RO pass.
Selection: Compare the final ionic-quality target and the selected EDI module's feed conditions.
Discuss an RO + EDI Configuration| Production duty | Where the water is used | What matters for selection |
|---|---|---|
| Creams, lotions and emulsions | Water-phase preparation and vessel charging | Defined ingredient-water quality, batch volume and charging time |
| Toners, essences and water-based serums | Water incorporated into the formulation | Formula-specific chemical and microbiological criteria |
| Skin-care gels | Preparation of the water-based formulation | Required water specification and production schedule |
| Equipment and line rinsing | Vessels, pipework and filling contact parts | Rinse-water criteria, peak consumption and the cleaning procedure |
A product name alone does not determine whether single-pass RO, two-pass RO or EDI is needed. Use your formulation and quality requirements to define the water specification, then match production and storage to the actual duty.
Treatment, storage and downstream equipment are coordinated within the agreed project scope.
Reverse osmosis uses pressure to move water through a semipermeable membrane, producing a lower-salt permeate stream and a separate concentrate stream. Pretreatment addresses the source-water conditions before the membrane process; storage and transfer carry the treated water to production.
Concentrate branch: RO concentrate → Concentrate outlet
Single-pass: RO permeate → Storage
Two-pass: First-pass permeate → Second-pass RO → Storage
RO + EDI: Selected RO permeate → EDI → Storage
Optional treatment stages and downstream equipment are selected for the project. This is a process overview, not an installation drawing.
Hardness, suspended matter and residual chlorine can change the pretreatment requirement even at the same nominal output. We select sand filtration, activated carbon, softening where needed and cartridge filtration around the source-water analysis and membrane process.
A second RO pass or EDI can address a lower ionic-content target. Microbiological quality, storage and distribution still require their own criteria and operating controls. We discuss those boundaries with the selected treatment configuration.
Charging a mixing vessel can create a brief demand peak. We assess storage, transfer-pump duty and replenishment together, instead of sizing the RO unit from the largest instantaneous draw alone.
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| Nominal water output (T/h) | Approximate water output (L/h) |
|---|---|
| 0.5 | 500 |
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 5 | 5,000 |
| 6 | 6,000 |
| 10 | 10,000 |
| 20 | 20,000 |
These are reference sizes across the RO range, using approximately 1,000 L per tonne of water. Output for a selected two-pass or RO + EDI package depends on the treatment train and operating conditions. Installed power, footprint, membrane configuration and utility requirements are specified for the quoted equipment.
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| Treatment configuration | Reference product-water conductivity | Treatment distinction |
|---|---|---|
| Single-pass RO | ≤10 µS/cm | One RO purification pass after pretreatment |
| Two-pass RO | 2–3 µS/cm | First-pass permeate receives a second RO treatment |
| RO + EDI | ≤0.5 µS/cm | EDI polishes permeate from the selected RO arrangement |
The conductivity references use feed-water conductivity ≤300 µS/cm. They are not an unconditional guarantee for every source water. Final feed conditions, temperature basis, product-water criteria and test methods are agreed for the selected configuration. Water outside this reference basis requires a separate design assessment.
Reference RO recovery is 55–75%. Overall package recovery must account for the selected treatment stages, flushing and other operating losses.
Our configuration range connects treatment choice with operating controls and downstream equipment. Level-based operation supports replenishment, online conductivity makes ionic-quality changes visible, and selected flushing functions support routine operation.
| Control function | Operating role |
|---|---|
| Storage-level stop and restart | Stops production when the product-water tank is full and restarts when replenishment is required |
| Timed pretreatment flushing | Runs the selected filter-media flushing sequence |
| Automatic RO membrane flushing | Performs the configured membrane-flush sequence |
| Online conductivity display | Displays feed-water and product-water conductivity for operational monitoring |
The operating sequence and included controls are defined for the selected configuration. Automation does not replace inspection, cleaning or routine maintenance.
| Option group | Scope to assess |
|---|---|
| Additional treatment | A second RO pass, EDI or mixed-bed polishing for the defined water specification |
| Water-hygiene equipment | UV or ozone equipment where appropriate to the selected water-system design |
| Storage and transfer | Product-water tanks, transfer pumps and circulation arrangements |
| Additional automation | Online pH adjustment, off-spec water return with an alarm, and production-data recording in relevant control configurations |
These options are selected by function and compatibility, not supplied as one universal package. Control functions, monitoring points and the equipment list are set out for the project.
Our range also includes mixing equipment, process vessels, pumps and cleaning systems. Bringing these interfaces into the same project discussion helps define water production, storage, transfer and use together for a single-machine purchase, an upgrade or a new line.
Our purified-water storage options include reference volumes of 1,000, 2,000, 3,000, 4,000, 5,000, 6,000 and 10,000 L. Single- or double-wall construction, vertical or horizontal layouts, insulation, venting and cleaning connections are assessed for the selected tank duty.
Nominal tank volume is different from usable storage. Operating levels, reserve volume, peak draws and refill time determine how much water is available to production. Transfer-pump flow also needs to match the required charging or circulation duty.
Daily formulation, rinsing and cleaning demand ÷ Planned production hours = Starting average production requirement
Average demand starts the sizing discussion. Check peak withdrawal, usable tank volume, feed-water temperature and replenishment time separately.
Illustrative RO Water Balance at 60% Recovery
Feed flow = Product flow ÷ Recovery
This steady-state calculation excludes flushing, EDI reject and other additional losses. It is a sizing illustration, not a quoted system performance.
The feed-water supply and drain need to support the complete package balance. Select recovery with the water analysis and treatment design, rather than assuming that the highest percentage is always suitable.
KOZMAG provides one contact for equipment selection, technical questions and after-sales support. We coordinate treatment, storage and production interfaces around the agreed equipment scope.
| Item | Arrangement |
|---|---|
| Lead time | Individual-machine orders typically take 30–60 days after order confirmation, depending on configuration. Integrated water-system projects are scheduled per project. |
| Installation and commissioning | Your team can install the equipment with our remote guidance. On-site installation and commissioning are available at additional cost. |
| Operator training | Video-call training or on-site training during an agreed installation visit |
| Warranty | Two years, excluding wear parts; the quotation defines component coverage and exclusions for the selected package |
| Spare parts and consumables | The recommended items and any included spares are agreed with the equipment scope |
Define the required operating instructions, electrical drawings, packing list and any project-specific layout or process documents in the order. The acceptance plan should identify the feed-water conditions, output, water-quality criteria, measurement method and test points.
Where test records or a running video are part of the agreed delivery, assess them against that plan. A video shows the demonstrated operation; it does not replace the specified water-quality tests.
About KOZMAG →Identify the water source and include conductivity or TDS with units, pH, hardness, turbidity, residual chlorine and water temperature. Iron, manganese, silica and other constituents may also matter for the source and membrane process. A conductivity reading alone is not a complete pretreatment specification.
For our single-pass, two-pass and RO + EDI configurations, the report needs to describe the water entering the proposed system. Existing pretreatment and seasonal variation can change that starting point.
Lower conductivity indicates lower ionic content; it does not demonstrate microbiological control. Formulation water and final-rinse water need criteria suited to their intended use. Storage, distribution, cleaning and monitoring remain part of that assessment after the RO unit.
Ionic quality → Conductivity and relevant chemical tests.
Microbiological quality → Defined sampling, testing and system-control procedures.
Tank vent filtration and UV or ozone equipment must be assessed for their specific roles. None should be treated as a stand-alone guarantee of sterile storage or a substitute for an agreed cleaning and monitoring program.
Compare the same feed-water analysis, required output, operating hours and product-water criteria. Then compare the scope: pretreatment, number of RO passes, EDI, tank, pumps, controls, installation support and acceptance requirements.
Purchase scope → Equipment, documentation and support included in the quotation.
Operating cost → Feed water, concentrate disposal, electricity, consumables and maintenance for the selected treatment train.
Additional stages should address a defined requirement. A lower price or a larger equipment list alone does not establish the better fit.
Feed-water quality, operating hours, fouling tendency and the selected stages affect maintenance. Filter media, cartridges, RO membranes and EDI equipment have different service requirements. Automatic flushing and conductivity display assist operation, but do not replace inspection, cleaning or replacement when required.
Use the selected equipment instructions and observed operating condition to plan service. Consumables, spare parts and warranty exclusions should be identified in the order rather than assumed from a general equipment description.
Water production, storage and transfer need to work with the timing of mixing and cleaning. Explore our mixing equipment or discuss the interfaces required for your project.
Share your source water, target water quality and required output. We will use these details to discuss the treatment configuration, storage and support scope for your production duty.
Include daily demand, peak batch draws, operating hours, the available water analysis, storage or circulation needs, site power supply and the installation location where known.
Email: sales@kozmag.com
Phone / WhatsApp: +86 18958878116
Room 602, No.108, Lane 308, Xumin Road, Qingpu District, Shanghai, China