OUR PROJECTS
Quarto's projects are spread across Indonesia, serving a diverse range of industries, including power generation, petrochemicals, mining, and manufacturing. Committed to operational excellence, Quarto provides clients with comprehensive one-stop solutions for energy and water management, ensuring efficiency, reliability, and sustainability.
From Operation & Maintenance (O&M) services at major power plants to chemical supply and specialized water treatment solutions for industrial facilities, Quarto delivers tailored services that optimize processes and minimize operational risks.
By integrating cutting-edge technology, expert manpower, and industry-best practices, Quarto remains a trusted partner in enhancing water treatment, cooling systems, boiler operations, and industrial sustainability across Indonesia’s critical infrastructure sectors.
PLTU CILACAP
Quarto currently operates and maintains all three units of PLTU Cilacap, which consists of Unit 1 & 2 (2x300MW), Unit 3 (660MW), and Unit 3A (1000MW). The core business operations across these units focus on Operation & Maintenance (O&M), ensuring the facility’s continuous and efficient power generation.
As part of its O&M services, Quarto provides:
- Skilled manpower, including operators, chemists, maintenance personnel, and safety teams.
- Operation of critical equipment, such as the Water Treatment Plant (WTP), Wastewater Treatment Plant (WWTP), Sewage Treatment Plant (STP), and Boiler Dosing System.
- Preventive, predictive, and corrective maintenance on various components, including pumps, instrumentation, electrical systems, and main equipment such as filters, ultrafiltration systems, reverse osmosis (RO) units, and mixed bed systems.
Through these comprehensive O&M solutions, Quarto ensures the reliability, efficiency, and sustainability of PLTU Cilacap’s power generation operations.
At Freeport’s Manyar Smelter, Quarto is responsible for two key contracts: Operation & Maintenance (O&M) for Process Utility and Water Management Services for the boiler and jacket cooling water systems.
For O&M services, Quarto provides manpower, operates, and maintains various complex equipment to ensure smooth and efficient operations. The facility includes a Demineralized Water Plant consisting of Ultrafiltration (UF), Reverse Osmosis (RO), and Mixed Bed Systems, as well as a Remineralized Water Plant for producing plant water (service water). Additionally, Quarto manages the Wastewater Treatment Plant (WWTP), Sewage Treatment Plant (STP), Cooling Tower Systems, and Compressed Air Systems for both plant air and instrument air.
For Water Management Services in Boiler & Jacket Cooling Water, Quarto plays a crucial role in ensuring water quality and system reliability. The scope of work includes providing qualified chemists, conducting water analysis with laboratory equipment and reagents, and troubleshooting when analysis results fall outside the required standards, such as performing boiler blowdown adjustments or modifying chemical dosing levels. Additionally, Quarto maintains the chemical dosing system by preparing chemical solutions at the correct concentrations to ensure accurate dosing and stable chemical levels.
Through these comprehensive services, Quarto enhances the efficiency, reliability, and sustainability of the water and utility management systems at Freeport Manyar Smelter.
FREEPORT MANYAR SMELTER
PT. PAITON OPERATION & MAINTENANCE INDONESIA ( POMI )
Quarto is proud to support POMI through a comprehensive Water Management Service business model, encompassing Service Water, Closed Cooling, and Wastewater Treatment, along with Boiler Furnace Slag Removal services. Our integrated approach combines chemical supply, specialized manpower, and operational management, ensuring optimal system performance, efficiency, and long-term sustainability.
For Boiler Furnace Slag Removal, we provide specialized chemical solutions and technical expertise, deploying our personnel to inject the necessary treatments into the furnace to effectively eliminate slag buildup. Maintaining a clean furnace enhances heat absorption efficiency, reduces coal consumption, and lowers boiler tube maintenance requirements, ultimately improving operational efficiency and cost-effectiveness. Our role extends beyond chemical supply to include stock management, manpower coordination, and real-time performance assessment, ensuring precise chemical dosing based on continuous system analysis in collaboration with client-provided data.
In Service Water and Closed Cooling, Quarto operates under a cost-per-kilogram chemical model, while also providing on-site manpower to execute Water Management Services. This includes chemical stock management, monitoring solution levels in daily tanks, maintaining system parameters, conducting water analysis, and overseeing laboratory equipment, reagents, and safety gear. Our team ensures water quality is consistently maintained to support efficient and reliable plant operations.
At the Wastewater Treatment Plant, Quarto is responsible for the regular supply of treatment chemicals, ensuring uninterrupted and efficient wastewater processing. Our on-site team actively manages chemical stock, monitors treatment performance, and conducts troubleshooting, including Jar Testing, to optimize dosing accuracy and compliance with environmental regulations.
Through technical expertise, hands-on operational management, and continuous performance monitoring, Quarto plays a pivotal role in enhancing POMI’s water treatment and furnace efficiency, delivering tailored, sustainable, and cost-effective solutions to meet the plant’s operational needs.
Quarto supports PLTU Nagan through a chemical supply business model, providing essential water treatment and process chemicals for Water Treatment Plants (WTP), Wastewater Treatment Plants (WWTP), Reverse Osmosis (RO) systems, and boiler operations. Our solutions include coagulants and flocculants for water clarification, antiscalants and chlorine scavengers for reverse osmosis membrane operations, and acid and alkali cleaners for membrane cleaning processes.
Additionally, we supply hydrochloric acid (HCl) and sodium hydroxide (NaOH) for mixed bed regeneration and as adjusters in wastewater treatment. Beyond wastewater and process water treatment, Quarto also provides critical chemical solutions for boiler systems, covering internal and external boiler treatment as well as oxygen scavengers to enhance boiler efficiency and longevity.
To ensure optimal chemical performance and system reliability, our team conducts regular site visits for monitoring, analysis, and troubleshooting, helping PLTU Nagan maintain efficient, compliant, and sustainable industrial water management.
PLTU NAGAN
Quarto has been actively involved in projects across Indonesia, serving a wide array of industries, including power generation, petrochemicals, mining, and manufacturing. With a strong commitment to operational excellence, Quarto delivers comprehensive one-stop solutions for energy and water management, ensuring efficiency, reliability, and long-term sustainability. This is where we have worked so far…
Connect with Quarto today for one-stop, tailored energy and water management solutions designed to enhance efficiency, reliability, and sustainability in your operations.