What is Sumatran Flood Wood For?

Former Minister of Maritime Affairs and Fisheries (KKP), Susi Pudjiastuti, urged President Prabowo Subianto to evaluate and halt the timber industry if it turns out that state revenues from the sector are not commensurate with the environmental damage and human lives lost. The devastating floods in Sumatra (Aceh, North Sumatra, and West Sumatra), which killed thousands of people, have captured national and even international attention. The government must elevate the status of the disaster to a national disaster so that the causes, perpetrators, impacts, and future anticipation can be identified. Without an elevating status, the problem will not be adequately addressed and foreign aid will be reluctant to enter. The perpetrators who caused the natural disaster, including the makers of the policies that supported it, must be investigated and prosecuted.

And that's not even counting other material losses, such as the destruction of infrastructure, homes, and so on. This tragic and heartbreaking situation would not have occurred if forests had been properly protected. When forests are cleared for palm oil plantations without adequate consideration and calculation, or solely for profit, the price is thousands of human lives, as Susie Pujiastuti noted. The timber from land clearing for palm oil plantations is so abundant that it becomes a source of significant profits.

Indonesia is currently the world's palm oil king with production of more than half (50%) of the world's palm oil or around 50 million tons of palm oil / CPO per year and the demand for palm oil continues to increase as the world's population continues to need a supply of vegetable oil (for food and biofuel). Palm oil is the world's largest vegetable oil production, beating other vegetable oils such as soybean oil, sunflower oil and canola oil. Palm oil with soybean oil, sunflower oil and rapeseed / canola oil are the four main vegetable oils in the world, where producing countries compete with each other (read: trade war) to market their vegetable oil products. The advantage of palm oil is the highest productivity of palm oil among other vegetable oils or the most efficient among the four most consumed vegetable oils in the world. For comparison, to produce 1 ton of palm oil requires 0.25 hectares, while to produce 1 ton of soybean oil requires 2 hectares, then 1 ton of sunflower seed oil requires 1.43 hectares and production of 1 ton of rapeseed / canola oil requires 1.25 hectares.

Another advantage is that palm oil tree cannot grow in subtropical countries like Europe and North America, so this should be a blessing for Indonesia, not a disaster. This is despite the fact that they are not native to Indonesia but originate from West Africa. With an area of ​​nearly 17 million hectares, Indonesia is the owner of the largest palm oil plantations in the world and a significant source of foreign exchange for the country. However, efforts to boost palm oil production through extensification must not ignore the aspects of safety and environmental sustainability. This extensification can even be slowed down through a number of intensifications, one of which is the application of biochar. For more details, read here.

The sustainability and deforestation aspects are 2 important points especially for a number of European countries to assess plantation products, especially palm oil and even the EUDR (EU Deforestation Regulation) will be implemented in about 1 year or fully effective January 1, 2027. But unfortunately, these European countries apply double standards because palm oil is treated very strictly even with various layered regulations, but this is not the case with other major vegetable oils, namely soybean oil, sunflower oil and rapeseed / canola oil.

The Sumatran floods recently demonstrated a haphazard policy (out of the bounds of sustainability) that was then exposed by the disaster. Land clearing resulted in a massive amount of logs. The abundance of logs created a seemingly endless island of logs, but they also polluted the environment and disrupted mobility. The losses caused by the floods were so great that they formed a seemingly endless island of logs due to the sheer size of the piles. One of the post-flood measures is clearing these logs. Some of these logs have high economic value and can therefore be utilized. Of course the profits from the sale of these logs are given to the people affected by the disaster caused by the indiscriminate logging. This distribution helps accelerate post-disaster recovery.

Technically, the wood needs to be selected based on its type, size, and market potential. Meanwhile, wood that is less economical or considered waste, such as because it is too small, broken into small pieces, split, and so on, can be used for biomass fuel, such as wood pellet production. The production capacity of a wood pellet factory is adjusted to the volume of waste, market demand, and investment in the factory's production machinery. The location of the wood pellet factory should also be close to the raw materials and not far from the export port. Several treatments, such as washing, are necessary because the wood is dirty and muddy. Similarly, wood submerged in the sea can potentially increase its chlorine content. Besides wood pellets, other biomass fuel products that can be produced include wood chips and wood briquettes. Market readiness is crucial in selecting biomass fuel products to be produced.

Biomass fuel production from flood wood waste is certainly not sustainable. Although the volume of wood waste is mounting and will only be depleted in a few years, consideration must be given to continuing to produce sustainable raw materials, especially after the flood wood waste is gone. Bare lands need to be reforested, as do critical and even idle lands. Appropriate plant selection and land mapping are essential. To sustain the production of biomass fuels such as wood pellets, energy plantations need to be established on suitable land. Energy plantation plants such as calliandra and gamal/gliricidia have taproots, making them useful for controlling erosion and landslides. In fact, within a certain area, these energy plantations can generate hundreds of trillions in revenue; for more details, read here. Likewise, other production forests, which produce wood for various industries and purposes, must also be managed properly to be a blessing, not a disaster. 

Processing of Empty Palm Fruit Bunches (EFB) for Ash Production as Potassium Fertilizer and Energy

Palm oil mills produce a large amount of biomass waste, and one of the largest in their daily operations is empty fruit bunches (EFB). Comprising approximately 22% of the fresh fruit bunches (FFB) processed by the mill, the volume becomes enormous and piles up daily if not managed properly. For example, a palm oil mill with a capacity of processing 60 tons of FFB per hour for 20 hours per day produces 264 tons of empty fruit bunch waste per day (approximately 6,600 tons per month and 79,200 tons per year). This enormous amount would resemble a hill if piled up in one place.

Incinerators have recently become popular, particularly in Indonesia, for processing empty fruit bunches due to their speed and practicality. Furthermore, the ash produced by burning them can be used as fertilizer due to their high potassium content. However, these incinerators produce exhaust emissions that pollute the environment, including black smoke and particulate matter. These emissions, which pollute the environment and exceed the threshold permitted by the Ministry of Environment (KLH), have led to the prohibition of incinerators. This ban has led to an increasing number of unmanaged empty fruit bunches. Using empty fruit bunches for mulch is also less effective, and composting, a biological process, takes a long time.

Video link for conventional EFB incinerator here

This problem demands an immediate and effective solution. The quickest practical solution is to upgrade the incinerator to make it environmentally friendly or to reduce emissions below the required threshold. This can be achieved by using adequate emission control devices to meet these environmental requirements. While many emission control devices are available, cost and target output are crucial considerations when selecting them. This approach not only addresses the problem of empty fruit bunches, but the resulting ash can also be used as a potassium fertilizer.

Furthermore, by upgrading the incinerator with emission controls (basic type), the equipment can be developed into several types, as follows: the second type is a cogeneration boiler for palm oil mills, allowing 100% palm kernel shell (PKS) to be sold, even for export. The third type is by adding a new boiler and steam turbine for electricity production, which is then sold to PLN (Indonesia State Owned Electricity Company) under a power purchase agreement (PPA). The fourth type is equipped with waste heat recovery equipment, allowing for more general use. This also means the combustion process in the upgraded incinerator can also be upgraded so that the combustion process can run optimally. Several combustion technologies, such as chain grates, step grates, or reciprocating grates, can be considered to achieve maximum performance, including the removal and handling of ash product.

Empty fruit bunches (EFB) processing can vary, although the primary focus is addressing environmental pollution caused by them. However, their large volumes certainly represent a potential raw material for processing units. Therefore, in addition to addressing this waste, the technology used must also provide financial benefits. Of the numerous EFB processing technology options, the cost-to-benefit ratio of a technology application will be a crucial consideration for EFB processing.

In addition to combustion using conventional or this upgraded incinerator, thermal processing routes also include pyrolysis, with slow pyrolysis specifically for biochar production and fast pyrolysis for bio-oil production. Another pyrolysis variant is mild pyrolysis or torrefaction for the production of torrified biomass. Then there's gasification to maximize gas (syngas) production from biomass. Furthermore, empty fruit bunches of palm oil can be used as fuel or an energy source. To facilitate handling, storage, and reduce transportation costs, empty fruit bunches need to undergo biomass densification technology, with the final product being pellets or briquettes.