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Cooling Tower Maintenance Case Study – Office Building Central Jakarta

ChatGPT Image Dec 2, 2025, 02_14_24 PM

Industry

Building Facility Management

Challenge

The office building's 800 HRT cooling tower system in Central Jakarta faced severe operational challenges, including substantial mineral scale and corrosion on critical components, heavy biological fouling (slime, algae, biofilm), and declining heat transfer efficiency. These issues led to increased energy consumption, reduced equipment reliability, and potential non-compliance with industry safety standards. The suboptimal quality of make-up water exacerbated both scaling and microbiological risks, making a comprehensive, technically robust treatment approach essential to restore system performance and safeguard asset longevity.

Results

Following the implementation of Hydro-Chem's treatment solutions and strict monitoring protocols, the cooling tower system achieved significant reductions in biological fouling and mineral scaling, with corrosion effectively controlled across all metal surfaces. Water flow and thermal efficiency were restored to optimal levels, reducing energy usage and enhancing operational reliability. Continuous dosing adjustment based on technical monitoring ensured system stability, prolonged equipment service life, and compliance with industry safety and operational standards.

Key Product

Product one

After implementing the treatment program provided by the Hydrochem team, our building’s cooling tower showed significant improvement. The heavy scale and corrosion buildup that previously affected our system began to diminish, and issues with slime and algae were resolved quickly. The cooling system’s performance stabilized, water flow improved, and we noticed better energy efficiency overall.The team worked professionally, responded promptly, and delivered solutions tailored to our system’s needs. We are very satisfied with the results and would not hesitate to recommend their services

Sukotjo

Manager Operasional

picture of an office, with a few people working at desks

Tentang HydroChem Pty

Hydro-Chem Pty Ltd is a specialist provider of water treatment solutions for industrial and commercial systems, offering a comprehensive range of chemical products and technical expertise to maintain system performance and safety.

The Challenge

A high-capacity cooling tower (800 HRT, 700 m³/h flow) in a central Jakarta office building was experiencing persistent and severe performance issues. Key problems included thick mineral scale on fillers and condensers, active corrosion due to poorly controlled make-up water quality, and extensive biological contamination (slime, algae, and biofilm). These factors compromised heat exchange efficiency, increased the risk of equipment failure, raised operational costs, and threatened compliance with industrial safety regulations. Immediate, technically sound intervention was required to mitigate these risks and restore system functionality.

The Solution

Hydro-Chem was selected for their expertise in large-scale industrial water treatment and their comprehensive portfolio of technical solutions. The building management evaluated multiple treatment approaches before choosing Hydro-Chem due to the proven effectiveness and safety profile of their chemical products, backed by detailed Safety Data Sheets and local technical support. The treatment program included daily application of Hydro 424 corrosion and scale inhibitor (200 ppm), Hydro 250 non-oxidizing biocide (50 ppm), and Hydro 379 T corrosion protector (2–5 ppm), with ongoing pH, conductivity, and microbiological monitoring. Dosing was adjusted in response to real-time field data, ensuring full coverage of all cooling system components and sustained control of scaling, corrosion, and biological growth.

The Results

The integrated chemical treatment and maintenance program rapidly reduced biological fouling (slime, algae, moss) and controlled scale and corrosion throughout the cooling tower system. Quantifiable improvements included restored water flow, stabilized system pH and conductivity, and recovery of thermal transfer efficiency—directly lowering energy consumption and extending equipment life. Continuous monitoring and adaptive dosing maintained operational reliability and compliance with industry standards, supporting the building's long-term HVAC performance and asset protection.

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