With an initial investment of 50-60 lakhs an investor can start brick production. To produce Biogas with the same amount of waste equal amount of water is required. At the visiting area waste is sold tk .20 and existing water cost is 6tk/ton. Now in the following other things held constant the following energy cost will be required
3.5 Other alternative options of this Biogas at Savar Area-
There are two more options available for brick manufacturers at Savar area such as – Compensate Natural gas with biogas and use biogas to the traditional brick field.
Costing and other issues will be varied based on the alternative approaches. Benefit will also be varied. Now in the following different approach and cost-benefit will be presented. …show more content…
Biogas will take 1.3 to 1.4 tk with providing a good amount of fertilizer with no cost. Energy cost will decrease with increased production. Fertilizer can be sold to the farmers. The additional cost will be covered after three months of operation if selling price is BDT 6. By adopting biogas a natural gas based brick field will reduce carbon emission by 112 tons annually.
Use of Biogas instead of Coal based brick field
Biogas is efficient as coal. It is mentioned earlier that one cubic meter biogas can produce 4 units of bricks where one kg coal can produce 5 units. So biogas can be taken as a good alternative to coal. For coal fired brick field the following replacement business costs will be required.
Generally a coal fired brick field incurs energy cost is about 2.33tk. So implementing biogas technology will definitely decrease cost of production for coal fired brick field. Now with existing coal fired technology with additional 40 lak investment can introduce a new production line. And it will be covered within three months of production at selling price of BDT6 and will enjoy a good amount of organic fertilizer that can also be sold. By adopting biogas a traditional brick manufacturers will be able to reduce carbon emission by 9000 kg every day .if it operates six months then 1620 tons of carbon emission will be …show more content…
On the other hand natural gas and electricity are used as fuel to burn brick at gas fired brick field. During the year MHC brick field incurs cost 11900000 tk, 1800000 tk, and 300000 tk respectively for coal, timber and tyre and produces 6000000 units in a year. So it incurs energy cost per unit is 2.33 tk.
Building Block Ltd. A natural gas driven brick field has average daily production 25000-30000 units and incurs energy cost per unit ranging from 1 to 1.5 or sometime goes up based on production fluctuation.
Now for a bio gas based brick field energy cost variables are manure and water, generally cow dung is sold at .20 tk to .30 tk. And water cost is not high (6 tk/ 1000 ltr). With this production capacity 53-73 tons cow dung and 53-73 tons water is required daily. So the unit energy cost will be range from 1.3 TK to 1.4 TK with 12000 units production capacity by per