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Menampilkan postingan dari Juni, 2019

POME Sludge Pellet, High-Calorie Biomass Pellet

Processing palm oil mill effluent (POME) is one of the mandatory requirements for palm oil mills. This requirement becomes a criterion whether the palm oil mill in question has a good environmental concern, especially its waste processing sector. The liquid waste of oil palm mills is one of the large quantities of palm oil mill waste. Almost all palm oil mills always have wastewater treatment ponds. Every ton of FFB (Fresh Fruit Bunch) produces 700 liters (0.7 m3) of liquid waste so that if the plant has a capacity of 60 tons / hour FFB and operates 20 hours per day, the volume of liquid waste produced reaches 42,000 liters / hour (42 m3 / hour) or 800,000 liters / day (800 m3 / day). The method of processing wastewater can be like the diagram below. Biosolid in the form of accumulated sludge can be processed further for biogas production, with by-products in the form of treated sludge, which is usually an organic fertilizer, can also be directly used as fuel. Instead of just being t…

Biomass : The Sexy Savior

In terms of environmental aspects biomass is a carbon neutral energy source, this is different from fossil fuels, especially coal, which is a carbon positive energy source. The more coal is consumed (burned) for energy sources, the higher the concentration of greenhouse gases, namely CO2 in the atmosphere. The higher concentration of CO2 gas in the atmosphere means increasing the temperature of the earth which causes the phenomenon of climate change and global warming. According to data from the Mauna Loa observatory in Hawaii, the concentration of CO2 in the atmosphere has reached more than 400 ppm and it is in a state of danger to the environment. As a global problem, of course, the global approach taken to solve the problem is like the annual climate conference, which in 2018 yesterday or the 25th was held in Katowice, Poland.
Indonesia as a tropical country is more suitable to develop biomass as its energy source than solar energy. Why is that? For more details, please read here.…

Production of Briquettes from Corn Cobs

Although corn cobs can be made pellet, briquette production can be more interesting. Why is that? This is related to the market segment and the technical specifications of the corn cob briquettes. The household segment, and SME may be the biggest user of corn cob briquettes. One of the obstacles in this segment is the unavailability of stoves and supply of corn cob briquettes. The second reason is that by making briquettes the density can be twice that of wood pellets. This will make cheap transportation costs as well as higher energy content.
A number of regions in Indonesia which are agricultural centers will produce abundant corn cobs. If this waste is utilized, it certainly reduces environmental pollution and simultaneously provides economic added value. Dependence on fossil fuels can also be reduced gradually. Aesthetically when made briquettes also make storage easier, cleaner, attractive and easy to use. Efforts towards the use of corn cobs should be a concern for corn product…

Energy Plantation for Coal Mine Reclamation

Indonesia as one of the largest coal producers in the world, turns out to leave environmental problems in its mining activities. It is estimated that around 8 million hectares or around 3/4 of Indonesia's palm oil plantation are former coal mine holes. The holes become a kind of lake that also often takes casualties. The regulations that apply are reclaiming the hole by returning the soil excavated after the coal deposit being extracted. In practice there are still very few who do this so that holes like lakes are still scattered everywhere. Of the very few, most of them only do it symbolically, meaning that reforestation of reclaimed land is only done in certain areas.

Energy plantations with fast rotation plants and leguminoceae groups such as calliandra and gliricidae are the right solutions to reduce these environmental impacts. After the reclaimed energy plantation can be made in the area of ​​the former coal pit. With an area of ​​thousands to millions of hectares, the woody…

Sago Waste For Sawdust Charcoal Briquette

Sago forests are spread mainly in the regions of Indonesia, Malaysia and the Philippines with Indonesia, especially Papua as the owner of the largest sago forest with a forest area of ​​1.2 million hectares or almost 50% of the world's area. Although sago plantations have begun to be made, most of them are still in the form of forests. In areas that have made sago plantations, the processing of sago products produced is also better. Sago has a very important role in food security, especially in areas such as Maluku and Papua. People in these areas eat sago as their staple food. Food security according to Law No. 7 of 1996 and PP 68 of 2002 is a condition of fulfilling food for households which is reflected in the availability of sufficient food, both in quantity and quality, safe, equitable and affordable. In addition, sago trees also have environmental benefits such as erosion, water absorption and greening. Food conversion from sago to rice will encourage the conversion of sago…

Designing Energy Plantation for Wood Pellet Production: Don't Choose the White Calliandra!

Day by day more and more parties are interested in the production of wood pellets from the energy plantation. The calliandra energy plantation is the choice of most prospective producers of wood pellets. This is because plants can grow fast and coppice has many advantages, including high woody biomass productivity, does not need to be rejuvenated every year and easy maintenance. And it turns out that the interest in making the calliandra energy plantation has also begun to spread to various regions in Indonesia and even abroad. By making energy plantations, it does have many advantages, especially in the supply of raw material will be more guaranteed and large quantities of raw materials achieved. Some of the advantages of wood pellet production from the energy plantations also can be read here. Besides calliandra, gliricidae ranks second for choice of energy plantation plant species. Even Sri Lanka will soon produce wood pellets from gliricidae, for more details, please read here.
De…

Wood Waste of Replanting For Sawdust Charcoal Briquette Production

Palm Oil Trunk At a certain age the trees on large plantations are no longer productive so they need to be replanted to maintain the sustainability of the plantation business. Two large plantation groups in Indonesia, which cover millions of hectares, are palm oil plantations and rubber plantations. Wood waste from the trunks of these trees can reach thousands or even millions of tons, and is generally not utilized. Indeed, there are uses of replanting wood waste for furniture, buildings and household appliances industries, but the portion is still very small so it cannot absorb the huge volume of wood. For example rubber wood can also be used for industrial furniture, wood and building wood, as well as palm oil logs. Even rubber wood is also used for making particle boards such as MDF (Medium Density Fibreboard) or HDF (High Density Fibreboard).

Sawdust Charcoal Briquette The utilization or processing of replanting wood waste for the production of wood charcoal briquette (sawdust ch…

Biogas, a Big Potential That is Still Not Much Glimpsed

The main purpose of processing liquid waste that is rich in organic materials is to get clean water both used again (re-use) and disposed of. Biogas products are produced mainly for processing large-capacity liquid waste. The processing stage consists of two stages namely primary and secondary processing. In primary processing, primary sludge will be produced from clarifier or settling tank. The liquid waste is passed to the clarifier or settling tank and the sludge deposit is produced. While in secondary processing, liquid waste is aerated to stimulate microbial growth. These microbes form a floc and settle into secondary sludge. The sludge or sediment must be treated at that location or transported to another place to be processed or disposed of.
The sludge processing unit usually consists of two or four stages. In sludge processing units, small capacity usually consists of only two stages, while large capacity can consist of a total of four stages. The stages of the process are: t…