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Products > Blend chemicals > RO chemicals > RO system acid clear RoClea-511
RO system acid clear RoClea-511
Product name : RO system acid clear RoClea-511
Product No. : 2016121119184
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Reverse Osmosis Cleaner

RoClea-511 is a high pH liquid formulation designed to remove organics, silt, and other particulate deposits from polysulfone, fluorocarbon, and all polyamide thin film composite reverse osmosis (RO) and ultrafiltration (UF) membranes. The product is effectively used in nanofiltration (NF), and microfiltration (MF) application. It provides superior cleanings allowing longer run times.

Technical Specification
Appearance: colorless to amber liquid
Density, g/cm3 at 21℃: 1.15±0.05
pH(2%) : 11.0±0.5
Viscosity (cps 21℃): 62cps
Solubility: Completely soluble in water
Freeze Point : -7℃
Flash Point (closed cup): >93℃

  • Compatible with polyamide thin-film composite membranes.
  • Extremely effective against oils and many other organic compounds.
  • Excellent results when used to clean biological matter and eliminate biological slime from the membrane surface.
  • Buffered to maintain an effective pH over a range of dilutions.
  • Enhanced performance at elevated temperatures.
  • Liquid cleaner which allows shorter mixing time.
  • Low foam formulation.No adverse effects with repeated use.

During the operation of a membrane separation system, organic materials as well as suspended solids in the incoming water can accumulate on the membrane surface. The presence of organic materials also provides an environment conducive to microbiological activity, which can result in microbiological fouling. Fouling from these species impedes the flow of water through the membrane. This can result in unacceptably low production, high operating pressure, or an excessive pressure drop in the system, which may lead to irreversible membrane damage. Additionally, accumulation of these foulants on the membrane surface can increase the amount of dissolved material passing through the membrane, resulting in product water of unacceptable quality. Before these foulants can accumulate to a level where product water declines or membrane damage can occur, they should be removed by a clean-in-place (CIP) off-line cleaning. Indications of the need for cleaning include a significant decrease in normalized permeate flow, a significant increase in pressure drop across the system (or individual stage), or an increase in the normalized salt passage, such that product quality is unacceptable.

RoClea-511 contains a blend of solubilizing and complexing agents designed to specifically remove organic and particulate foulants from the surfaces of the membrane. Used in tandem with an acidic cleaner for scale removal, regular cleanings with RoClea-511 can help to preserve the life of your membranes.

Depending on the nature of the fouling, a soak period may be necessary for optimum results. RoClea-511 is not a biocide. If sterilization of the membrane and equipment surfaces is desired, use some advised biocide.

DO NOT USE RoClea-511 on cellulose acetate membrane. For optimum results, RoClea-511 should be used in combination with some membrane biocide.

Typical dosage range is between 2 and 10 ppm. A sample dosage calculation for general purposes would be as our advice. Over and under-dosing may decrease filtration efficiency.

Feed System - This product should be used in conjunction with the membrane cleaning equipment supplied by the manufacturer of the membrane system.

Dilution - The product must be diluted prior to introduction into the membrane system. The recommended dilution for this product is 1kg of RoClea-511 per 100kg of water.

Compatibility - Corrosion-resistant equipment, such as PVC, should be used for the storage and preparation of this product. Pumping materials coming in contact with the concentrated or diluted products should also be corrosion resistant.

To be stored in cool and ventilated warehouse, avoid direct exposure in the sunshine.

Packing and Useful-life
RoClea-511 is a liquid material, available in a wide variety of customized containers and delivery methods.

Useful-life: 2 years

A copy of MSDS is available once required.

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