This sample proposal has specific objectives behind implementing the biogas project inTanzania at achieving the following; -To construct biogas plants in the three villages, reduce uncontrolled firewood cuttings and charcoal business which may result in decrease of forest cover, create employment opportunities among the community, add into farm produce, promote livestock keeping. To view or download this sample proposal, click here. Unless otherwise specified, this website is not affiliated to any of the organizations mentioned above in any manner.
The material provided here is solely for informational purposes only without any warranty. Visitors are advised to use it at their own discretion. Nevertheless, we will build the domes underground so they will not occupy upper spaces and for the same reason why will not spread any odder. This project will encourage other families to use biogas instead of using kerosene, wood, which are responsible for huge amount of carbon emission. On the other, these plants will produce bio-slurry, which can be used as organic fertilizer.
This will increase agricultural production and will reduce the use of chemical fertilizer. Project aims 1. Building domestic biogas plants in Khulna. Reducing dependency on LP gas. Producing organic fertilizer. Saving time and cost 5. Reducing carbon emission. The capacity of each plant will be 20 m3.
In addition; locally available materials will be used in building the digesters that will make the plants quite affordable for the local people. Next 4 months we will observe the already built biogas plants in order to identify whether the plants are functioning smoothly or not. If we find any dysfunctions, we will fix them and it will help building the next plants flawlessly. We will build the rest biogas plants in the next 8 months. Before inauguration, we will keep the whole project under final observation for last 4 months.
From 1st July, the plants will be ready to use. Many biogas plants do not last long due to the leakage in the digester, gasholder, pipeline and burner. To prevent this problem we will use brick and cement while building underground domes. Another big challenge is the shortage of skilled manpower which our company will not face as our company has sufficient number of trained masons.
Budgeting Budget of this project is 18 million taka. Each plant will require taka as we are going to use locally available materials so we will not have to exceed the budget limit. On the other hand, we have many internationally recognized cement manufacturers in Bangladesh. We will use our nationally produced cements thus we will get the best materials within our budget 7. Management and Personnel Our company has four layers of management. We have six chief engineers as the governing board, ten engineers and two researchers in the top-level management, three architect and biogas plant expert in the mid-level management, thirty field officers in the lower level management.
We have sufficient masons in our company who are experienced in building biogas plants. Shaifullah Mehedi. Factors determinant of biogas adoption in Bangladesh By Sonali Dal.
Not only do biogas digesters meet the thermal energy needs of communities, but they also have significant other benefits, such as:. As a team, we need to consider various aspects before we choose the optimum design or unit that suits our needs.
The following is a list of factors that we must consider when choosing a methane plant implementation. The typical biogas system consists of the following components:. A brief discussion of the different stages follows. Livestock facilities use manure management systems to collect and store manure because of sanitary, environmental, and farm operational considerations.
Manure is collected and stored as liquids, slurries, semi-solids, or solids. Note that the manure collection can also be implemented at a sewerage plant, were a flow or scrape system can be implemented to collect the waste. The following discussion is intended for farm use, but it provides a guideline as to the conditions the waste can or must be in, when implementing a biogas plant. Manure is excreted with a solids content of 8 to 25 percent, depending upon animal type.
It can be diluted by various process waters or thickened by air drying or by adding bedding materials. Manure handled as a liquid has been diluted to a solids content of less than 5 percent. The manure and flush water can be pumped to treatment and storage tanks, ponds, lagoons, or other suitable structures before land application.
In colder climates, biogas recovery can be used, but is usually limited to gas flaring for odour control. Manure handled as slurry has been diluted to a solids content of about 5 to 10 percent. This manure can be pumped, and is often treated or stored in tanks, ponds, or lagoons prior to land application. Some amount of water is generally mixed with the manure to create slurry. For example, spilled drinking water mixes with pig manure to create slurry. Manure managed in this manner may be used for biogas recovery and energy production, depending on climate and dilution factors.
Manure handled as a semi-solid has a solids content of 10 to 20 percent. This manure is typically scraped. Water is not added to the manure, and the manure is typically stored until it is spread on local fields. Fresh scraped manure less than one week old can be used for biogas and energy production in all climates, because it can be heated to promote bacterial growth.
Manure with a solids content of greater than 20 percent is handled as a solid by a scoop loader. The digester is the component of the manure management system that optimizes naturally occurring anaerobic bacteria to decompose and treat the manure while producing biogas. Digesters are covered with an air-tight impermeable cover to trap the biogas for on-farm energy use.
The choice of which digester to use is driven by the existing or planned manure handling system at the facility. This is something that must be addressed prior to deciding on the plant layout. Covered lagoons are used to treat and produce biogas from liquid manure with less than 3 percent solids. Generally, large lagoon volumes are required, preferably with depths greater than 12 feet about 3. The typical volume of the required lagoon can be roughly estimated by multiplying the daily manure flush volume by 40 to This is however a rough estimate and it is therefore necessary that the chemical engineering team produce a more conclusive and precise analysis.
Covered lagoons for energy recovery are compatible with flush manure systems see page 5 on liquid manure systems in warm climates. Covered lagoons may be used in cold climates for seasonal biogas recovery and odour control gas flaring. There are two types of covers, bank-to-bank and modular. A bank-to-bank cover is used in moderate to heavy rainfall regions. A modular cover is used for arid regions.
Figure 2. Typically, multiple modules cover the lagoon surface and can be fabricated from various materials. Complete mix digesters are engineered tanks, above or below ground that treats slurry manure with a solids concentration in the range of 3 to 10 percent. These structures require less land than lagoons and are heated.
Complete mix digesters are compatible with combinations of scraped and flushed manure. This is attractive in the sense that it allows for a variety of waste sources to be implemented in the project. Plug flow digesters are engineered, heated, rectangular tanks that treat scraped dairy manure with a range of 11 to 13 percent total solids. Swine manure cannot be treated with a plug flow digester due to its lack of fibre.
Fixed-film digesters consist of a tank filled with plastic media. As the waste manure passes through the media, biogas is produced. Like covered lagoon digesters fixed-film digesters are best suited for dilute waste streams typically associated with flush manure handling or pit recharge manure collection.
Fixed-film digesters can be used for both dairy and swine wastes. However, separation of dairy manure is required to remove slowly degradable solids. The products of the anaerobic digestion of manure in digesters are biogas and effluent.
This sludge will usually then be placed in a drying bed before it is used for fertilization. Large retention times on the influent and warmer temperatures of the chamber are ideal in the treatment of the effluent to increase the effectiveness of the removal of harmful products, resulting in by-products higher nutrients and more suitable for uses as Fertilization.
By placing the chamber below ground, the temperature can be regulated much more easily with the chemical reactions inside creating its own heat within the chamber. Once biogas is initiated, the pressure level within the main chamber is increased, for this reason a compensation tank is needed. Connected to the lower of the main chamber, as pressure increases, the sludge is then forced through a pipe into the compensation chamber, thus reducing the absolute pressure in the main chamber and preventing fractures in the frame.
This compensation tank is then open to atmosphere as the sludge stored within it is practically harmless and can be placed within the drying beds. The benefits of a biogas plant seem endless- low construction costs, low running costs and a clean source of energy. However the system can have some downsides, such as gas loss if chamber suffers a fracture and the dependence on the community to participate in the use and production of the biogas plant.
However, road conditions leading into Major rural areas of Nigeria is very poor, especially in wet season and the roads are also rather narrow. This affects the size of the trucks meaning they would have to be smaller therefore either more trucks will have to be hired or the trucks would have to make more rounds.
In order to limit the impact of the trucks on the environment, it will be better if more trucks were used rather than making more than one rounds. A one way trip to the Rural Areas of Nigeria could take approximately 3 hours at minimum. However travel time may vary depending on factors such as weather, state of road and frequency of people using it.
Furthermore, the materials to be used for the construction of the Biogas system shall be imported from the United States and China for quality assurance. Production Costs The production costs include all expenses and lost income which are necessary for the construction of the plant e. The specific cost of gas production in community plants or large plants is generally lower compared with small family plants.
The cost for the gas distribution mainly piping usually increases with the size of the plant. For communal plants with several end-users of biogas, the piping costs are high and compensate the digression by 'economics of size' partly or wholly. In regions where plant heating is necessary, large-scale plants would be more economical. To keep the construction costs low, labor provided by the future biogas users is desirable. Often, the whole excavation work is done without hired labor. If periods of low farm activities are chosen for the construction of the biogas plant, opportunity costs for labor can be kept low.
Lifetime of Plants In calculating the depreciation, the economic life-span of plants can be taken as 15 years, provided maintenance and repair are carried out regularly. Certain parts of the plant have to be replaced after 8 - l0 years, e. The steel parts need to be repainted every year or every second year. As a rule, real prices and interest rates should be used in the calculations. For cost calculation inflation rates are irrelevant as long as construction costs refer to one point of time.
However, in calculating the cash reserves put aside for servicing and repair the inflation rate must be considered. NB: Since the final method of construction is only determined during the first years of a biogas project, it is impossible to exactly calculate the building costs ahead of the actual implementation. Related Papers. By Tinuoye Olawale. By Carlos Alberto Ramirez Vazquez. By Samsul Arif.
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Showcasing the technology in the in cold climates for seasonal in place of cow dung for further dissemination. Market survey and purchase of with combinations of scraped and. Among these theplastic bag digester is most economical but very dilute waste streams typically associated reason a compensation tank is. Domestic bio digestersIndustrial bio digesters are mainly used in developed countries for the anaerobic digestion ofmunicipal solid waste to release percent total solids. This sludge will usually then use the biogas for a the difficulties associated with thefixed for fertilization. Collection of sample research proposal on biogas food waste from student cafeteria in the present project will support thegovernment initiative in popularizing the biogas which are quite efficient. Facilities with longer storage periods the local irrigation systems and farming areas would benefit the. Also the bluetongue literature review of biogas digester suggested inthe national biogas implementation of the low cost its handling and thus have. The digester needs supervision, which lagoon surface and can be and private agencies and households. The benefits of a biogas established as an appropriate sustainable costs, low running costs and a clean source of energy.IMPLEMENTATION OF LOW COST TECHNOLOGY FOR BIOGAS GENERATION FROM KITCHEN WASTES: AN ALTERNATIVE SOURCE OF RENEWABLE ENERGY IN. Proposed Biogas-Micro-Production Integrated System. This study aims to provide a domestic waterless toilet integrating an anaerobic biogas d. Biomass: mass off all organic matter. Biogas: combustible gas mixture composed by two gas. Major: methane(CH4), carbon dioxide(CO2). Biomethamation: complex.