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.
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.
Poultry litter is an organic waste in Syria which can be a source of clean
energy if treated anaerobically. This research aimed to investigate the effect of
mechanical pretreatment of poultry litter in producing biogas and methane.
Experiments wer
e performed in units of fermentation laboratory on samples
ground spread over parts diameters 1 mm, 3 mm, and 10 mm at at 37°C
temperature, for a period of 42 days and compared with untreated samples
mechanically.
A reactor was designed to produce and rise the productivity of biogas
during anaerobic treatment of cattle dung.
It had a size of 32 cubic meters, constructed and installed. The material used
was a sheet of metal, the unit was put over the land.
The results indicated that the biogas production rate was 0.63 m3/m3, while
the daily average biogas production was 18.81 m3. The results also revealed that
the average percentage of methane content in biogas was 66.3%. The average
colorific value of produced gas was 451440 KJ/day.
The results also showed that, The digested sludge can be used as a good
fertilizer.
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.
يعد حمض السيتريك أحد أهم الحموض العضوية التي يستخدمها الإنسان في مجالات شتى مما رفع الإنتاج العالمي مؤخراً إلى 1.6 مليون طن / سنوياً
