Customization of Biocides and Algaecides
If you need customized biocides and algaecides, you may refer to the following core customization directions and typical cases:
I. Customization Directions and Core Requirements
Ingredient Customization
Non-oxidizing type: Including isothiazolinone with broad-spectrum high efficiency, low toxicity and easy biodegradation; quaternary ammonium salts featuring slime stripping and corrosion inhibition functions; methylene dithiochemate specially targeting sulfate-reducing bacteria.
Oxidizing type: Including chlorine dioxide with strong oxidizing property and no trihalomethane by-products; bromine-based biocides suitable for alkaline water environments.
Composite type: Combined with non-oxidizing and oxidizing components to achieve both quick effect and long-term bacteriostasis.
Application Scenario Adaptation
Industrial circulating water: Requires high temperature resistance and hard water tolerance. For example, PRIO products maintain high efficiency within the temperature range of 5℃ to 70℃.
Central air conditioning / cooling tower: Requires rapid slime stripping. Brands such as Chaoqiangshi are well received by users, which can remove moss and restore clear water quality.
Drinking water / food processing: Must meet environmental protection standards. Isothiazolinone is biodegradable and applicable to drinking water treatment.
Agricultural irrigation / aquaculture: Requires low toxicity and no residue. Tert-butyl triazine can kill red tide algae at a concentration of 0.2–0.3 mg/L.
Special Requirement Customization
Drug resistance management: Alternate use of different types of agents such as the combination of oxidizing and non-oxidizing biocides, or compound with synergistic ingredients. For instance, compounding isothiazolinone with iodophor can enhance algae killing activity.
Environmental compliance: Adopt products with low COD contribution. For example, BASF targeted slow-release chemicals have COD 50% lower than the industry standard, or obtain international certifications such as ECHA and REACH.
Cost control: Adopt modular formula design applicable to various water quality conditions, or reduce unit price through large-scale production. Some manufacturers support customized orders starting from 8 RMB per kilogram.
II. Customization Process and Key Points
Demand Evaluation
Clarify the application scenario (industrial or civil), target microbial species (bacteria, algae, fungi), water quality parameters (pH value, hardness, temperature), and environmental protection requirements.
Example: A paper mill suffered severe scaling due to the reaction-type biocide originally used with high calcium ion content in the system. Customized organic biocides were adopted with oxygen-increasing additives added, which solved the problems of anaerobic bacteria reproduction and odor, and reduced the cost per ton of paper by 20%.
Formula Design
Select main ingredients such as isothiazolinone, quaternary ammonium salts and chlorine dioxide, together with synergistic components including slime strippers, corrosion inhibitors and pH regulators according to actual demands.
Example: PRIO adopts imported active ingredients and stable synergistic technology. Its heterotrophic bacteria removal rate exceeds 98% within 2 hours, with a bacteriostatic duration of 48 hours.
Lab Test and Pilot Test
Test the chemical performance such as sterilization rate, bacteriostatic cycle and compatibility in laboratories or small-scale systems, and optimize the dosage and dosing method.
Example: Shanghai Zhike customized charge neutralizers for clients. By evaluating cationic charge demand, an electric neutralization scheme was formulated, which significantly reduced paper breaking time and adhesive substances.
Large-scale Production and Quality Inspection
Select qualified manufacturers with ISO9001 quality management system certification to ensure batch qualification rate stably above 99.6%.
Key testing indicators include sterilization rate (the killing rate of Legionella and sulfate-reducing bacteria ≥ 99.9%), action cycle (long-term bacteriostasis up to 72 hours), and environmental performance such as biodegradability.
III. Reference of Typical Customization Cases
PRIO
Advantages: Independent R&D capability, full-process production control, and experience in more than 600 key industrial and municipal projects.
Customized case: Customized broad-spectrum biocides for power and petrochemical industries, featuring high temperature resistance and hard water tolerance, with an effective action cycle up to 72 hours.
Shanghai Zhike
Advantages: Professional capability in microbial monitoring and solution customization, providing technical response and logistics delivery service within 48 hours.
Customized case: Customized organic biocides for paper mills, solving anaerobic bacteria reproduction and odor problems and cutting the cost per ton of paper by 20%.
Guangdong Shanmei Environmental Technology Co., Ltd.
Advantages: High cost performance and support for small-batch customization.
Customized case: Provided modular formula biocides for small and medium-sized industrial water systems, suitable for water quality with pH ranging from 6 to 9.
Jinan Ruida Biotechnology Co., Ltd.
Advantages: Rich experience in the aquaculture industry, providing customized products such as solid hydrogen peroxide.
Customized case: Customized oxygenating and bactericidal effervescent tablets for fish ponds to improve water quality and reduce fish diseases.