The corrosion of biogas pipes and equipments damage as generators, boilers and coprocessors is one of
the most real important problems in Damascus wastewater treatment plant (at Adra region). These
problem caused high financial losses and costs , t
hat it required studying and solving. Biogas is the result
of an aerobic digestion process of sludge, it contains about 50-70% of methane as a main resource of
power, where the biogas considers free when it release spontaneity. Different analysis have been occurred
on the biogas to show its components, tests on the pipes material and analysis of sediment material inside
the pipes that caused by biogas.
The Research aimed to use the technology of the fermentation to produce the biogas from the cow manure. The digester has benn carried according to the Indian model. The digester consit of one cylinerical tank with 9.42m3 volume (height 3m, diameter 2
m) and gastank with 6m3 (height 1m) and inlet pipe and outlet pipe. The study showed the following:
The accumulated production of biogas was through the 30 days retention time 48m3. The heighest production was in the thirteenth day with 4.5m3. The farm became after the use of digester clean and with little insect and smell.
With use 1m3 of biogas could we use one cooker for 2.5 hour and with the same quantity could we use one inner combustion diesel motor (90% biogas and 10% diesel) for half an hour.
3/4m3 from digester volume is enough for one cow with 12 kg manure daily. So we can design the suitable digester for any farm.
This research was conducted in Lattakia province during the year 2012 first, to
identify the current status of the production residues and agro-processing materials in the
province and, second, to introduce modern methods of taking advantage of the
m and
raising their nutritional value.
Results showed that, the most agricultural residues are not optimally used, instead,
they were disposed and accumulated causing substantial losses and environmental
pollution.
Results showed that, the investment average ratio of legume, vegetables, cereals, and
fruit trees were 75%, 65%, 60% and 40% consensually
This research conclusion shows that, the optimal use of barley residue is a source of
cheap protein units that are necessary for animals feeds; where the cost per unit of digested
protein resulting from urea treated hays amounts to 0.5 S.Y.P. This amount represents one
fifth of the cost of protein unit from barley.
Also, the use of wheat straw in the cultivation of oyster mushrooms achieve
significant economic results, the net profit resulting from the cultivation area of 10 m2 of
oyster mushrooms using 30 kg of wheat straw was about 81000 S.P.
In addition to that, the research results show the importance of agricultural waste in
biogas production and the resulting compost, which in turn has achieved excellent results
when fertilizing crops with it. The increase in the yield of maize, wheat, faba bean and
vegetables were 35.7%, 12.5%. 6.6% and 14.1-20.6% consensually.
Some chemical, spectral and thermal characteristics of some humic acids
(HA) extracted from: Farm manure (Fm), biogas(Bio), compost (Com), forest
litters of pine (Pl) and of descendant forest (Dl), and their complexes with Camontmorillonite
were s
tudied by TGA and DTA analysis.
This study aimed to study the economic efficiency of producing
biogas from manure dairy cows, through cost and revenue account,
using some of economic indicators.
