scholarly journals Briquetting of Biomass for Low Cost Fuel using Farm Waste, Cow Dung and Cotton Industrial Waste

2019 ◽  
Vol 8 (3) ◽  
pp. 8349-8353

The ultimate source of energy for crucial activities like cooking, heating and parboiling process is burning wood and other agricultural products. Due to growing populations utilizing resource of combustible biomass materials will finally result in insufficiency of those materials until certain measures are taken to secure them. It mainly focuses on the minimization of pollution especially land, water and air and to avoid the deforestation mainly for many fuels for burning. The product taken is the by-product, which is obtained from the residue left after letting the cotton industrial waste for reuse. The raw materials used are cassava waste, coconut shell, groundnut shell, cotton waste and cow dung with thirty different mix ratios. The briquettes were made without using any binder. Using hydraulic pressure with UTM given to produce the briquettes are 5.0 kN/cm 2 , 5.6 kN/cm2 and 6.0 kN/cm2 . Good energy content has been obtained when the pressure for producing briquettes at 5.6 kN/cm2 .These briquettes are mainly used for industrial boiler running and cooking purpose.

2018 ◽  
Vol 3 (3) ◽  
pp. 21
Author(s):  
Barinyima Nkoi ◽  
Barinadaa Thaddeus Lebele-Alawa ◽  
Benedict Odobeatu

This research paper focuses on re-engineering design and fabrication of a modified potable biogas digester for the production of biogas as a renewable energy source for domestic use. Digesters used around the world are commonly big in size. There is need to modify and re-engineer an existing biogas digester to fit in to modern day design for better efficiency, portability and safety. Floating drum and Flexible balloon are digesters to be modified as a thin walled pressure vessel with radius-thickness ratio  greater than 10. ASME codes and standards were used to carry out the sizing calculations, thickness and pressure calculations for the cylindrical pressure vessel shells and also calculations for the storage tank hemisphere shell. AISI 304 (Chromium-Nickel steel) is used for the vessel shell and the maximum allowable stress is 137 MPa. Weld efficiency (85%), corrosion allowance (0.02mm),  of 24 (for digester),  of 18 (for collector) and  of 20 (storage tank). 17 kg of cow dung and 34 kg of water with temperature of 32oC were the raw materials used for this research to produce a cumulative gas volume of 0.1243 m3 for 30 days. Furthermore, a bike pump is modified and used to increase methane gas pressure from 4.903 kPa to 345 kPa to suit the modern day gas cookers design and storage tank. Unlike other biogas plant, an electronic smoke alarm detector (model: Ei100) is placed 300 mm below the digester top for effective fire protection. Series of tests were performed to ensure that the constructed prototype met the specifications/standards. Such test include, smoke detector test, pressure testing, gas leak test, and a unit test run also confirmed that the aim of research was achieved.


Membranes ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 105 ◽  
Author(s):  
Amanmyrat Abdullayev ◽  
Maged Bekheet ◽  
Dorian Hanaor ◽  
Aleksander Gurlo

In water treatment applications, the use of ceramic membranes is associated with numerous advantages relative to polymer-based filtration systems. High-temperature stability, fouling resistance, and low maintenance requirements contribute to lower lifecycle costs in such systems. However, the high production costs of most commercially available ceramic membranes, stemming from raw materials and processing, are uneconomical for such systems in most water treatment applications. For this reason, there is a growing demand for new ceramic membranes based on low-cost raw materials and processes. The use of unrefined mineral feedstocks, clays, cement, sands, and ash as the basis for the fabrication of ceramic membranes offers a promising pathway towards the obtainment of effective filtration systems that can be economically implemented in large volumes. The design of effective ceramic filtration membranes based on low-cost raw materials and energy-efficient processes requires a balance of pore structure, mass flow, and robustness, all of which are highly dependent on the composition of materials used, the inclusion of various pore-forming and binding additives, and the thermal treatments to which membranes are subjected. In this review, we present recent developments in materials and processes for the fabrication of low-cost membranes from unrefined raw materials, including clays, zeolites, apatite, waste products, including fly ash and rice husk ash, and cement. We examine multiple aspects of materials design and address the challenges relating to their further development.


2019 ◽  
Vol 889 ◽  
pp. 489-498
Author(s):  
Ngo Anh Phuong ◽  
Ho Thanh Tung ◽  
Phan Tan Huy ◽  
Thomas Guidat ◽  
Thanh T. Tran ◽  
...  

One of the biggest environmental challenges of Vietnam is plastic wastes without recycling such as bottle, cans, plastic bag. The Vietnamese government have recognized these problems and called the reforming campaign to develop the sustainable technology to re-producing the wasted plastic. Thus, this research aims to contribute to deal with the issue by designing a plastic recycling machine. To satisfy domestic market of over 120 units at the first time, this research attempted to make a small machine at a low cost, but its throughput still reaches about 8kg plastic/hour and it can run within 16 consecutive hours a day. Hence, most of components is expected to be supplied by local vendors. As the result, the product price as well as maintenance cost is anticipated to be reduced. With the aim to produce the automated machine can incorporate continuous raw materials flow and at the same time move melted plastic in screw conveyor as defined by the regulation of the Programmable Logic Controllers (PLC) with timer to detect a velocity of melted plastic which come out from a nozzle of the screw conveyor and go to a mold. The hydraulic pressure, then, applies force to compressing and forming products. There are potential risks that can happen in fact, to deal with them. That is a reason Computer aid engineering and Finite element method modeling were conducted to make sure the force pressed in mold sufficiently and controlled the thickness of production as customer requirements.


2021 ◽  
Vol 37 ◽  
pp. e37078
Author(s):  
José Vaz Pinheiro Neto

Biodiesel is a clean and cyclical energy resource that is derived from animal and/or vegetable fat. As it blends well with petrodiesel, biodiesel is added to Brazilian commercial diesel. The main raw materials used to produce biodiesel in Brazil include soybean, corn, and sunflower oils. However, these are also used for human consumption and hence, have a high market value. Therefore, pinhão manso oil, which exhibits high productivity at low cost, is a promising alternative. However, the high acidity index of this oil results in a low transesterification yield and the produced biofuel does not meet the requirements imposed by the ANP. Thus, this study intends to demonstrate that a large part of the free fatty acids in pinion oil are present in the seed endocarp. For the development of the project, the oil was extracted by hot solvent, using the soxhlet equipment and the hexane solvent, to determine the acidity index, the titration technique was used, the titrant used was sodium hydroxide. So the acidity index of the oil extracted from the seed with its shell is 10.9 mgKOH/g, while the lipid obtained without the shell exhibits a value of 0.95 mgKOH/g, proving the influence of the endocarp.


2019 ◽  
Vol 4 (4) ◽  
pp. 73 ◽  
Author(s):  
Piergiorgio Tataranni

Paving blocks are today a popular paving solution for urban surfaces. Considering the wide variety of products currently on the market, it is possible to build pavements that differ in terms of functionality, bearing capacity, skid resistance, visual impact, and aesthetic integration with the surrounding landscape. Interlocking concrete paving block is the most common construction technology considering its low cost and its easy installation. Different wastes and second-hand materials have recently been tested in order to completely or partially replace the raw materials used for the production of paving blocks. In this paper, a waste basalt powder is used for the production of alternative paving blocks through the alkali-activation process. Two different synthetic blocks were produced, with and without aggregates. Taking into account the EN 1338 standard for concrete paving blocks, a complete laboratory characterization is proposed for the two experimental blocks. Tests highlighted positive results and downsides that need to be optimized in order to convert the laboratory production to an industrial scale.


Author(s):  
A. Ashok Kumar ◽  
R. Jhansi ◽  
U. Harsha Vardhan ◽  
S. M. Gousia ◽  
A. Kesav Kumar ◽  
...  

A hand operated low pressure biomass multi briquetting machine was developed and evaluated which works using a screw press mechanism. The developed system mainly consists of multi square moulds, multi circular moulds, single circular mould pressing plates, base plate, supporting stand and steering wheel. Rice husk, tamarind kernels, groundnut shells, and sawdust were used as raw materials along with cow dung and tamarind powder as binding material for preparation of briquettes. The developed machine was tested with various combinations of agricultural residues and developed various combinations and proportions of raw material briquettes and studied the thermal and physical properties of developed briquettes. The developed machine is low cost and simple in operation and able to produce sixty briquettes per hour.


Author(s):  
Sohel Shaikh

There has been a recent push to replace the burning of fossil fuels with biofuel. The replacement of this non-renewable energy resources with biological waste lowers the overall pollution of the world. The waste biomass similar to dry leaves, sawdust, rice husk, coffee husk etc. are gathered and compressed into the briquettes, these briquettes can also transport and used as fuel to generate heat and energy. It is a time to take initiative to turn Biomass into a source of energy. Hence here we are taking responsibility in converting agricultural and forestry wastes into useful biomass briquettes, which can also be used as a substitute for Coal and other non-renewable resources. Biomass briquettes are a biofuel substitute or replacement to a coal and charcoal. Biomass briquettes can be manufactured by using agricultural and forestry waste. The low-density biomass Is converted into high density biomass briquettes with the help of a briquetting machine that Uses binder or without binder i.e., binder less technique, as there is no any type of chemical is used so it is 100% natural. The mostly used raw material for biomass briquettes, Mustard Stalks, Sawdust, Groundnut Shell, Coffee Husk, Coir Pitch, Jute Sticks, Sugarcane Bagasse, Rice Husk, Cotton Stalks, Caster Seed Shells / Stalk, Wood Chips, Paddy straw, Tobacco Waste, Tea Waste, maize stalks, bajra Cobs, Arhar stalks, Bamboo Dust, Wheat Straw, Sunflower Stalk, Palm Husk, Soya bean Husk, Veneer Residues, Barks & Straws, Leaf’s, Pine Niddle, Seeds Cases etc. are used. Biomass Briquette are largely used for any type of thermal application, like steam generation in Boilers, in furnace & foundries (It can be used for metal heating & melting where melting point Is less than 1000d/cel.), for heating purpose (Residential & Commercial Heating in winter, Heating in Cold areas and Hotels, Canteens, Cafeterias and house hold kitchen appliances, restaurants etc.), There are several machines available in market but those machines are bulky and are costly, hence here we have developed a portable, low-cost briquetting machine, which makes use of simple mechanism to convert the biological waste into useful briquettes. Any waste or any proportion of Agri waste can be used but with proper binding agent. Some raw materials doesn’t require any binding material high pressure compression is used. The paper presents the results of a project focused on the development of briquettes from the sawdust (Waste Wood) resulting from the primary waste from timber companies. This sawdust currently lacks a useful purpose, and its indiscriminate burning generates CO and CO2 emissions which are harmful to nature. Sawmill Agri waste is a huge problem specially in urban cities. These wastes are burnt openly which is causing environmental pollution and also becomes reason for human health care.


2021 ◽  
Vol 7 (1) ◽  
pp. 25-32
Author(s):  
Sri Widyastuti ◽  
Risa Suryananta Arfa

Water hyacinth (Eichonia crassipes) is one type of aquatic plant that has a fast growth rate. As a result, sunlight is blocked from entering the water, so that aquatic biota cannot carry out the photosynthesis process perfectly.  This study aims to determine the value of C/N ratio, levels of Phosphorus (P), Potassium (K), pH, and temperature (T) in composting for 16 days with the addition of 200 mL of bioactivator effective microorganism 4 (EM4) in each reactor. Variations of raw materials used are Control Reactor (RK) containing 1.5 kg of water hyacinth; Treatment Reactor 1 (R1) contains 0.5 kg of water hyacinth + 1 kg of cow dung; Treatment Reactor 2 (R2) contains 0.5 kg of water hyacinth + 1 kg of rice bran; and Treatment Reactor 3 (R3) contains 0.5 kg of water hyacinth + 1 kg of cow dung + 1 kg of rice bran. The results showed that the combination of raw materials had an effect on the quality of the organic fertilizer produced. The combination of Treatment 3 (R3) produced organic fertilizer with the best quality, namely C/N ratio = 15.30%, pH = 7.16, macronutrient P = 4.91% and K = 8.36% which met the quality standard requirements. Minister of Agriculture Number 261/KPTS/SR.310/M/4/2019 concerning the minimum technical requirements for organic fertilizers, biological fertilizers, and soil improvement.


2019 ◽  
Vol 802 ◽  
pp. 113-124
Author(s):  
Ruslan Aharonovich Abramov ◽  
Maksim Sergeevich Sokolov ◽  
Svetlana Vyacheslavovna Derevianko

Material consumption of production of building materials is determined by the amount of raw materials used for their production, to the total output. One of the ways to reduce material consumption is the use of industrial waste as the main raw material for the production of new construction products. Most of the waste generated as a result of the activities of enterprises are man-made raw materials for the production of products such as brick, lime, cement, etc.Given that man-made raw materials are similar to the natural composition and physical properties and even has a number of advantages (heat treatment, increased dispersion, etc.), the manufacture of building materials from it is usually profitable and justified [4, 5].


2021 ◽  
Vol 37 (3) ◽  
pp. 3-7
Author(s):  
A. Muhammadi ◽  
A.H. Lahori ◽  
V. Vambol ◽  
S. Vambol

Potentially toxic metals (PTMs) contamination in the water bodies had been a worldwide challenge. Industrialization and anthropogenic activities have produce and discharge wastes comprising organic and inorganic pollutants into the water resources making them hazardous and threatening human health and the environment. Packaging technology for food and beverages such as juices, milk, and other liquids using paper packets, generally known as Tetra Pak, has resulted in the generation of too much waste in the world in recent decades. On the one hand, it appears that the building of composites from Tetra Pak trash allows for maximum recycling of these materials, while on the other hand, the inclusion of Kraft paper, Al, and polyethylene in the packet composition can improve the functional features of the goods. Tetra pak packaging is comprised of three different types of raw materials: cellulose (75 %), low density polyethylene (LDPE) (20 %), and aluminium (5 %).The present research aimed to assess the potential of Tetra Pak industrial waste as biosorbents to remove PTMs such as lead (Pb), Nickle (Ni), and Copper (Cu) from PTMs-artificial contaminated water. Approximately, 0.05 mg/L concentration for Ni, 0.027 mg/L for Pb, and 0.05 mg/L for Cu were artificially added in the water bodied to assess the adsorption efficacy amended with two samples of waste Tetra Pak OTP (sample product1) and DOTP (sample product 2) as biosorbents. The obtained results showed that the maximum Ni adsorption recovery was received by (83 % with DOTP), Pb 52 % with OTP and Cu 32 % with OTP as bio-sorbent amendments. Overall, the present study indicated that the remove of PTMs from dilute aqueous solutions and using industrial waste material as easily available and low-cost sorbent, that can be successfully used to remove pollutants from multi-metal polluted water.


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