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Application of Biocides and Algaecides in Circulating Water Systems – Kerui Chemical Supports Safe Summer Operation

 In summer, high temperatures cause rapid microbial growth in circulating cooling water systems, leading to biofouling, pipe blockage, and under‑deposit corrosion. Biocides/algaecides are divided into oxidizing and non‑oxidizing types, typically applied via shock dosing or alternating dosing strategies. Kerui Chemical ( krhedp.com ) offers a biocide/algaecide product line including: Oxidizing biocides: Such as high‑efficiency chlorine tablets, bromochlorodimethylhydantoin (BCDMH), chlorine dioxide precursors – broad‑spectrum, fast‑acting. Non‑oxidizing biocides: Isothiazolinone, quaternary ammonium salts, glutaraldehyde – strong biofilm penetration. Alternating with oxidizers prevents microbial resistance. Slime stripper: Special surfactant formulation that quickly removes attached biofouling and cleans heat exchanger surfaces. Recommended program: In summer, alternate oxidizing and non‑oxidizing biocides 2–3 times each per month, plus slime stripper once a month. ...
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Kerui Chemical High‑Efficiency Decolorant – Solving Decolorization Problems in Printing & Dyeing and Papermaking Wastewater

 Wastewater from printing & dyeing, papermaking, and leather industries has high color intensity and complex composition. Conventional flocculation/sedimentation often fails to meet discharge standards. Decolorants separate chromophores from water through adsorption, complexation, and charge neutralization. Kerui Chemical ( krhedp.com ) provides dicyandiamide‑type and modified organosilicon high‑efficiency decolorants: Dicyandiamide‑type decolorant: Over 98% decolorization for reactive dyes, acid dyes, and direct dyes, while significantly reducing COD and suspended solids. Modified organosilicon type: Suitable for high‑concentration, refractory wastewater; combines demulsification and flocculation, especially for emulsified dye wastewater. Usage tips: Adjust pH to 6–9 first; dosage 50–300 ppm depending on raw water color; works best with PAC/PAM. Customer feedback: After using Kerui Chemical decolorant, a printing plant in Guangdong reduced effluent color from 50...
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Corrosion Control in Circulating Cooling Water Systems – Kerui Chemical Launches New Corrosion Inhibitor Scale Inhibitor

 In industrial circulating cooling water systems, corrosion of metal materials (carbon steel, copper, stainless steel, etc.) can cause equipment leakage, production interruptions, and even safety accidents. Scaling and corrosion often promote each other. An ideal corrosion/scale inhibitor should combine inhibition, scale prevention, and dispersion functions. Kerui Chemical ( krhedp.com ) has developed a series of corrosion‑scale inhibitors for different conditions: Molybdenum‑based inhibitor: Suitable for high chloride, high conductivity water; forms a dense oxide film with excellent corrosion resistance. Zinc‑salt compounded type: Fast film formation, especially for system pre‑film treatment and low‑pH conditions. All‑organic formula: Heavy‑metal free (no chromium, no zinc), environmentally safe, suitable for plants with discharge restrictions. Case study: In a petrochemical plant’s circulating water system, after using Kerui Chemical KR‑603 corrosion‑scale inhibitor, ...
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Key Points for Antiscalant Selection in Reverse Osmosis Systems – Kerui Chemical Provides Professional Solutions

 Membrane scaling is a major issue affecting water production rate and equipment life in reverse osmosis (RO) systems. Common scales include calcium carbonate, calcium sulfate, barium sulfate, strontium sulfate, and silica scale. Correct selection of antiscalant can effectively delay scaling and extend membrane cleaning cycles. Kerui Chemical ( krhedp.com ) offers a series of RO antiscalants with the following advantages: Broad-spectrum scale inhibition: Excellent dispersion and inhibition for calcium carbonate, calcium sulfate, barium sulfate, calcium fluoride, etc., especially suitable for high-hardness and high-alkalinity water. Good compatibility: Compatible with common membrane materials (polyamide composite, cellulose acetate) and flocculants (cationic PAM, etc.), no precipitation or gel fouling. Eco-friendly formulation: Phosphorus-free or low‑phosphorus design meets stringent wastewater discharge standards and reduces post‑treatment burden. Easy to use: Sup...
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Shandong Issues Water-Saving Industry Development Plan, Targeting a Scale of 100 Billion Yuan by 2027

  On June 23, journalists learned from the Shandong Provincial Water Resources Department that the department, together with the Shandong Provincial Development and Reform Commission, Shandong Provincial Department of Science and Technology, and five other departments, recently issued the "Shandong Water-Saving Industry Development Plan," proposing ideas, layout, direction, and pathways for the high-quality development of the water-saving industry. By 2027, the province's water-saving industry scale is expected to reach 100 billion yuan , and by 2035, the scale is set to double over the decade. Key targets: By 2027: Form more than 10 featured and competitive water-saving industrial clusters (parks); cultivate more than 2 national or provincial water-saving technology innovation platforms; establish a pilot zone for high-quality development of the water-saving industry in the Yellow River Basin. By 2035: Double the industry scale compared to 2027; build mor...
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Water Treatment Chemicals Used in Seawater Desalination and Oil Extraction

 What are the main application fields of your company's products? Are they applied in seawater desalination and offshore oil and gas extraction? Dear investor, hello! Taihe Technologies' water treatment chemicals are mainly applied in the fields of electricity, metallurgy, chemicals, oil extraction, and daily chemicals. In the field of seawater desalination, there are two forms of desalination: membrane-based and distillation-based. For membrane-based seawater desalination, Taihe Technologies' water treatment chemicals can be used as membrane scale inhibitors. For distillation-based seawater desalination, they can be used as scale inhibitors in seawater flash evaporation. In the field of offshore oil extraction, Taihe Technologies' water treatment chemicals can be used for scale inhibition and corrosion inhibition in oilfield reinjection water and oil transmission pipelines. In offshore oil extraction where barium and strontium content is high, they can be...
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Full-Membrane Water Treatment Technology Enables Efficient Mining Wastewater Treatment and Resource Recovery

An investor recently asked on an interactive platform: "If mining causes water pollution, how would China Water Environment Protection (CWEP) handle this probla given your years of governance experience and scientific research technology? And how would you choose when interests and harm stand on opposite sides?" CWEP responded:"Dear investor, hello! CWEP is an ecological environment governance service provider and a national-level 'Little Giant' enterprise. In the field of industrial water treatment, we provide services to national key industrial clients, including petrochaicals, nuclear power, new energy, metallurgy, coal chaicals, coal mines, and thermal power, covering the entire process from raw water, daineralized water, and wastewater treatment to reuse and zero discharge. Water pollution caused by mining mainly consists of industrial wastewater, including pit water, mineral processing wastewater, and mine water. Our independently developed ful...
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