Case Study on Biocidal and Algaecidal Treatment in Petrochemical Recirculating Cooling Water Systems

Overview:

In response to the issues of bacterial and algal growth, microbial proliferation, and biofouling in petrochemical circulating cooling water systems, Prio has developed a comprehensive treatment plan through water quality analysis, optimization of biocides and algaecides, and operational monitoring, effectively controlling microbial growth and improving both the quality of the circulating water and the operating environment of the equipment.

Case Category:

Petrochemical industry

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Case Introduction

　　During the long-term operation of a petrochemical enterprise’s recirculating cooling water system, elevated water temperatures, the accumulation of nutrients, and the concentrated operation of the circulating water have accelerated microbial proliferation, leading to localized issues such as biofilm and algal growth, slime deposition, and turbid water quality.
　　Microorganisms and their metabolic byproducts readily form biofouling, which adheres to heat exchangers, pipelines, and pool walls. This not only impairs the normal operation of circulating water systems but can also interact with corrosion and scaling, thereby increasing the burden of equipment maintenance.
　　Based on the circulating water quality and operating conditions at the site, Prio’s technical team conducted a comprehensive analysis of the system’s microbial status, water temperature, pH, turbidity, and circulating water operating parameters, and developed a targeted biocide and algaecide treatment plan.
　　Select an appropriate oxidizing or non-oxidizing biocide based on the site-specific operating conditions, and control the microbial population in the circulating water through proper dosing strategies and operational cycle management. In conjunction with sludge removal and discharge management of the circulating system, further minimize microbial proliferation and biofilm buildup.
　　During the treatment process, adjust the chemical dosing regimen promptly in response to changes in water quality, and continuously monitor the operation of the circulating water system to prevent the prolonged use of a single chemical from leading to increased microbial resistance.
　　Following treatment, the issues of microbial and algal growth as well as biofouling in the circulating water system have been significantly mitigated; water turbidity and sedimentation have been brought under control, and the operating conditions of heat exchange equipment have been further improved, thereby ensuring the long-term stable operation of the circulating cooling water system in the petrochemical plant.
　　

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Company Address No. 3716 Qingdao Road, Huaiyin District, Jinan City, Shandong Province, Unit 1801, China Construction Jinxiu Plaza.

Production base Juye Chemical Industry Park, Heze City, Shandong Province.

Nanjing Branch Company Room B2304, Nanjing University of Technology (Dingjiaqiao Campus), No. 5 Xinmofanma Road, Gulou District, Nanjing City, Jiangsu Province.

Phone ： +86-531-88986356

Phone ：+86-15562623709
Email ： sdprio@sdprio.com