Ruminant Farming and Post-Mining Reclamation

To fertilize post-mining soil, organic matter or compost is important and much needed. Land or post-mining land is damaged with a very low fertility level so it needs to be processed (treatment) first before it can be planted. The choice of plants depends on the purpose of using the post-mining land, whether for agriculture, forestry or others. Planting fast growing trees and short rotation coppice i.e. legume group trees is the best option. In addition to the ability to survive, its deep roots are also able to withstand erosion and the ability to symbiotic with azetobacter so that it binds nitrogen in root nodules so that it fertilizes the soil. And furthermore, the legume tree can be used as a source of animal feed (the leaves), bioenergy (the wood) and honey (the flowers).

The creation of livestock and their supporters such as forage plantations is like an ammunition factory to reclaim the post-mining land. The wider and faster the target time for reclaiming the land, the larger the farm required. Ruminant farms with thousands or even tens of thousands of livestock can be made with this purpose. Although the main objective is to produce compost for post-mining land reclamation, the indirect benefits from the farm are no less large. Even from the farm business can get big financial benefits. The main and common problem faced by mining entrepreneurs is that they are reluctant to do reclamation because it costs a lot and does not provide financial benefits. But when the reclamation activity does not reduce the company's finances even provide large profit, of course it will be a different story. The volume of mining carried out should also be proportional to the repair or post-mining reclamation.

To maximize the reclamation, biochar needs to be used. The use of biochar will make compost in post-mining land not easily lost after being washed by rain, maintain soil moisture because biochar is able to hold water (water holding capacity), raise soil pH so that soil microbial activity is more optimal and more nutrients are absorbed by plants, and biochar also will become a home or colony for soil microbes so that it will further fertilize the soil. Meanwhile, in terms of climate change mitigation, the use of biochar in the soil will also store carbon (carbon sequestration) for a very long time, up to hundreds of years. Carbon credits with a carbon sink mechanism as part of the CCS (carbon capture and storage) application can also be obtained. The carbon trading market is predicted to get bigger as global awareness of climate change and biochar as one of the solutions are also increasingly being applied, discussed and paid attention to by the earth's population.

The extent of post-mining land that reaches millions of hectares, the high demand for domestic meat as well as the export market, and the large amount of biomass waste that can be converted into biochar, post-mining reclamation should be a priority for mining entrepreneurs moreover, the reclamation activity does not reduce the company's profit but instead gives more profits. If this can be done, the environmental damage caused by mining can be minimized. Indeed, humans need various products that come from the mining to make their lives easier, but also not to the point that on the other hand the mining business actually damages the environment which will lead to disasters in the future.

Sheep Goat Livestock or Insect Livestock?

According to the United Nations, the global population is predicted to reach 9 billion people by 2050. The food sector is looking for a solution to the protein deficit due to per capita protein demand and population growth. Insects are a source of protein that is promoted in both feed and food. The nine billion people who are predicted to live on planet Earth in 2050, need an additional 250 million tons of protein per year, an increase of 50% compared to today. And according to the FAO, crickets need 6 times less feed than cattle, four times less than sheep, and twice less than pigs and broilers to produce the same amount of protein. A number of insect breeding companies have sprung up, especially in Europe for the production of protein from these insects, and there has even been an organization specifically formed for this, namely IPIFF (International Platform of Insects for Food and Feed). About a third of the production of these insects is for food and two-thirds for protein sources of feed. Will we Muslims be raising insects instead of sheep for protein sources? As Muslims, we shouldn't have to eat crickets to get protein intake as is widely promoted in the west. The types of insects permitted to be bred by the European Commission for this purpose include only 7 species of insects, namely 3 types of crickets, 2 types of caterpillars and 2 types of flies. We choose halal Thaiban, namely mutton and lamb.

Consumption of goat-lamb meat per capita in Indonesia is still very low, which is less than 1 kg per year and this could be only during Eid al-Adha or Eid al-Qurban. Of course this is very concerning, so its consumption needs to be increased. Even though this lamb meat is the best meat and the Prophet Muhammad liked it. Protein is one of the important elements for human food and more specifically lamb and goat meat as a source of protein has its own advantages, for more details read here. In a hadith the Prophet Muhammad SAW also ordered his people to keep these sheep because of blessings. These goats and sheep are closely related to the Muslim worship practices, namely aqiqah and qurban which are part of Islamic law (shariah) until the Day of Judgment, so that raising sheep and goats also has many virtues.

"Take care (use) by you goats because in them are blessings." [HR Ahmad]

"No prophet was sent except that he shepherded the goats. The friends ask, are you too?". He replied, "Yes, I used to herd the goats of the residents of Mecca for a few qirath wages." [HR. Al Bukhari, no. 2262] 

Abu Hurairah r.a. said: "Once served to the Prophet Shallallaahu 'alaihi wasallam a bowl of porridge and meat. So he took part of the arm (of the meat), and that part was most liked by the Prophet Muhammad Shallallaahu 'alaihi wasallam." (HR. Muslim)

Abu Hurairah radhiyallahu 'anhu narrated, "The Prophet Shallallaahu 'alaihi wa sallam was served meat. The leg (of that meat or thigh) was given to Him. The Prophet Shallallaahu 'alaihi wa sallam liked it, so he took a bite of the meat." (HR. Bukhari and Muslim)

With the development of energy plantations or legume plantations, sheep and goat farming can be increasingly encouraged. The main problem in the form of feed availability and more specifically the source of feed protein becomes easy to overcome. Thus, large capacity farms are also very likely to be developed, because the demand for goat and sheep meat is also very large. In addition, Indonesia's palm oil plantation area which reaches 15 million hectares is also potential for livestock, especially sheep, for more details read here. From this it can be concluded that in anticipation of the population growth, Muslims should be serious about raising these goats - sheep.

Opportunity to Export Wood Pellet to Germany

At the end of 2022 or this year, all nuclear power plants in Germany will be discontinued, then in 2030 or at the latest in 2038 all coal fired power plants will also be discontinued. Germany in the context of decarbonization has planned to reduce fossil fuels, especially coal in its power plant. The percentage of nuclear power plants in Germany is 3.6% or about 8 GW and this requires immediate efforts to replace the electricity supply. Meanwhile, coal-fired power plants reach about 28% or more than 40 GW, and currently electricity production with coal is very expensive, due to the price of coal itself and carbon tax. Coal prices are around $150 but recently there has been a spike to $435 and a carbon tax of over $100 for every ton CO2 emitted. With these cost components, the price of electricity production for each MWh reaches around $220 (not including labor costs, maintenance, and so on), whereas if it is replaced with wood pellets the production price is only around $90 per MWh or approximately one third. Very cheap. Moreover, with the use of wood pellets, the sulfur scrubbing process (FGD = flue gas desulphurisation) can be reduced or even eliminated.

Biomass fuels such as wood pellets are carbon neutral so they do not increase the concentration of CO2 in the atmosphere, so that when using wood pellets for power generation and subsequent CO2 gas emissions, which are greenhouse gases, are captured and stored (CCS = Carbon Capture and Storage) so that they do not escape into the atmosphere, then this becomes carbon negative or reduces the concentration of CO2 in the atmosphere. The amount of CO2 gas that can be captured and soraged can also get carbon credit compensation, so that the coal power plants will get additional income. But without even having to use CCS, the use of wood pellets has reduced the cost of electricity production very significantly and is environmentally friendly. Meanwhile, if the power plant uses coal which is carbon positive and then CO2 emissions are captured and stored with CCS technology, this becomes carbon neutral. Of course, carbon negative efforts are better than carbon neutral.

On the other hand, Germany is famous for its technological products, especially industrial machines. A number of machine manufacturers for the production of wood pellets also come from Germany, such as Muench, Salmatec and Kahl. These machines are widely used for the production of wood pellets around the world and are reliable. It is possible that later the machines for the production of wood pellets will be imported from Germany and wood pellet products from Indonesia will be exported to Germany. This is in accordance with the potential advantages of each country. Indonesia with a land area of 1.91 million km2 with a lot of available land and being in the tropics has great potential as the world's main producer of wood pellets.

Currently about 55% of the fuel for power generation in Germany uses natural gas originating from Russia, and currently war is breaking out between Russia and Ukraine. The issue of Germany's alignment may affect the supply of natural gas from Russia to the country due to the war. Conversion from coal power plant to wood pellet power plant is not difficult and does not require a large investment, so this conversion is the most realistic solution. With the number of coal-fired power plants in Germany more than 100 units or about 1/3 of the electricity supply, so the need for wood pellets will also be very large if the power plants switch to wood pellets.

Biomass Pellets in India

India has hundreds of millions of biomass waste, especially from agricultural wastes or about 230 million tons per year. Hundreds of millions of tons of biomass waste is of course an environmental problem, especially because most of the waste is simply burned in fields where the smoke pollutes the environment, but on the other hand it will be a solution, namely for decarbonization programs and climate change. Technically, the biomass waste from agricultural waste will be processed into fuel pellets (biomass pellets) which are used for fuel in power plants by cofiring. In the early stages, the Indian government targeted 5% for the cofiring ratio in their coal power plants, where the 5% figure when translated into biomass pellet production would reach around 50 million tons of biomass pellets per year. This is a very large amount, especially with a short time target, which is only one year since it was ordered on October 8, 2021 and will take effect in October 2022 or this year, so hard efforts are needed to achieve this target. Meanwhile, in 2021, the world's demand for wood pellets for power plants will only be around 23 million tons.

The establishment of factories for the production of biomass pellets must be carried out immediately to achieve the production target. These factories must also be supported by logistical readiness to supply raw materials so that the factory can be completed, so that the production of biomass pellets can be carried out as soon as possible. With an average power generation capacity of 275 MW in India, with a cofiring ratio of 5%, the annual need for biomass pellets is estimated at 50 thousand tons or 170 tons per day. With the number of power plants reaching around 900 units with an average consumption of 50 thousand tons of biomass pellets per year or a total of almost 50 million tons per year, the distribution of biomass pellets is also a challenge. A factory with a capacity of around 5 thousand tons/month is likely to be suitable, and even if each factory supplies one power plant, the need for a biomass pellet factories will also be the same as the number of power plants, which is 900 units. A huge amount.

Biomass pellets or agri-waste pellets, namely pellets from agricultural wastes do have a number of differences with wood pellets. Wood itself is also a part of biomass so it can also be called biomass pellet. Biomass has a wider range, including wood pellets and agri-waste pellets. Agri-waste pellets have higher ash content, and some have higher chlorine, potassium and silica content in the ash. The content of these substances is not friendly to the heat exchanger pipes in the boiler which will cause fouling and corrosiveness, so that in addition to decreasing boiler efficiency, the service life of the boiler is shortened. In addition, the harvest of agricultural products usually coincides at certain times, while the pellet factory must continue to produce every day. This is why it is necessary to store and allocate raw materials in the form of agricultural waste for the routine production of these pellets. And because these agricultural wastes cannot be left alone in the agricultural area, they need additional investment in the form of storage warehouses and to be able to store more agricultural waste they need to be temporarily compacted by baling. These things usually don't happen in wood pellet production, so the agri-waste pellet production approach is different.

And because the ash chemistry of agricultural wastes causes many problems in the operation of power plants, their use is also limited. With a cofiring ratio of 5%, the problem can still be tolerated, but when the ratio is enlarged, the impact will be more pronounced. The exception is the CFB (circulating fluidized bed) type plant which can use 100% of the agricultural waste pellets, but in India the power plants using CFB technology are very small, around 1% (9-10 units). Indonesia and Malaysia also produce biomass fuel that is almost similar to pellets and even in the international market is the pellet competitor, namely palm kernel shells or PKS. The volume of PKS also reaches millions of tons, so it can be exported to India to help meet India's needs for biomass pellets, which so far have been mainly for export to Korea and Japan. PKS is also produced by a number of countries in West Africa. But it seems that the Indian government for now will prioritize the use of their agricultural waste first, so it has not provided financial support for the import of the biomass fuel.

Currently, India must make every effort to accelerate the construction of biomass pellet factories to achieve this target. However, 1 year to achieve this target is very difficult. With these conditions in the future, it is possible that power plants in India will import biomass fuels such as wood pellets and PKS to meet their needs. With the currently planned cofiring ratio of 5%, the need for biomass pellets reaches around 50 million tons, if only 2% of the biomass fuel needs are imported, both PKS and/or wood pellets, it will reach 1 million tons, the amount is still very big.