Tjiwi Kimia has committed itself to being socially, environmentally and economically sustainable throughout its operations. Tjiwi Kimia keep this commitment by helping to empower people in the nearby communities, initiating conservation programs to protect biodiversity and the environment, increasing the use of sustainable forest management certified material, built a dedicated deinking plant, adopting best practices in mill operations to continually reducing greenhouse gas emissions, and by dedicating the company-wide to continuous improvement.

As a part of its commitment toward social sustainability, Tjiwi Kimia actively contributes to the development of the communities in which it operates. Tjiwi Kimia also realizes that the sustainability of its operations is closely related to the community’s welfare and how the company can work together in equal partnership toward enhancing the community’s standard of living. Through a series of strategic and carefully designed programs, Tjiwi Kimia helps provide basic necessities for communities living around its mill operation area in addition to supporting sustainable development for long term positive impacts.

Fully aware of the important issues that concern and aect the environment, Tjiwi Kimia has taken important steps to assure the company’s compliance towards the protection of the environment by:

- Investing funds for wastewater treatment.
- Complying with government regulations and requirements.
- Managing the surrounding environment of the factory complex through the application of ISO 14001.
- Implementing 6S program to assure zero emission for the factory premises and surroundings.

To show its commitments, Tjiwi Kimia has installed the following items:
1. Equalization tanks
2. Primary clarifier
3. Biological treatment
4. Secondary clarifier
5. Euent treated water
6. Incinerator

In this section of our website you can see in more detail what we plan and what we already do.


 Deinking Plant


In the 21st century, preserving the environment and incorporating environmental-friendly decision in all of our ways of life have become a priority. In line with its commitment toward the environment, Tjiwi Kimia built an environmentally friendly deinking plant. Deinking is the industrial process of removing printing ink from paper fibers of recycled paper to make deinked pulp.
Tjiwi Kimia commits to high standard of environment practices in all its operations, and work together with several prestigious independent verification bodies to ensure objective evaluation and certification. The recycled paper resulted from deinking process is certified by one such independent body to ensure the recycled content percentage and recycled material sources are accurate.

At Tjiwi Kimia, the waste materials is a combination of Post Consumer Waste (PCW) and Post Industrial Waste (PIW). All waste paper is sorted to remove impurities before its delivered to the process in unit. The first process, the waste paper is pulperized with the wet process to remove plastics and other materials in the drum pulper. After the pulp is formed, the fiber is cleaned and purified again to remove any remaining heavy particles like stone, sand ad staples. At the next stage of the cleaning process the operation continues to purify the fiber and remove particles like woodchips and small pieces of plastics.
The pulp then goes on to the next stage in the screening with the process continues to purify the fiber and remove small particles using a finest screen. This eliminate smaller particles and materials like plastics. The materials is filtered twice more and the microscopic particles such as ink to very light and smooth are extracted the ink that's been released from the pulp floats away and its collected separatelly. Next the water content of the fiber is reduced. The pulp continues to kneeding process to reduce any remaining of the ink particles.

The next stage is oxydation. Oxydation allows form max result from the pulp its bleached with hydrogen peroxide (OH2O2). The pulp is squeezed for second time. Then return to kneeding machine one more time. To make sure the ink is removed, the pulp is floated once again. At this stage, the cleaning machine washes away tiny smooth particles like sands from the fibers. Then, the water content from the fibers is reduced again. At the end of the stage, the pulp is bleached again. This time by reduction process using formamidine sulphuric acid (FAS) before its heated. During the extracting process the fiber is washed to remove any microscopic particle, chemical,
dirt, and ink may remain. Finally the clean fiber are placed in storage tank and now the pulp is ready to be used in paper making machine.






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