Producing the organic fertilizer from domestic waste water of Tikrit city by combined use of Absorbing Spongic Belt and Thermal Rotating Dryer  techniques.

Diyyab Mahal Aljanabi, Jihad

	Producing the organic fertilizer from domestic waste water of Tikrit city by combined use of Absorbing Spongic Belt and Thermal Rotating Dryer techniques.
Tikrit Journal of Pure Science
Article 1, Volume 18, Issue 4, 2013, Pages 63-68
Author
Jihad Diyyab Mahal Aljanabi
Abstract
This study aimed the treatment of domestic waste water (D.W.W)discharged from Tikrit city-Mid of Iraq.,by combining two techniques ,the Absorbing Spongic Belt( A .S.B) and Thermal Rotating Dryer ( T.R.D).The treatment included dewatering of the sludge and its conversion it to microorganisms free organic fertilizer.Some physical , chemical and biological characteristics were determined .Among these ,the PH was ranged between low acidity to low alkalinity ,The EC reached to 1682,the total dissolved solids reached to 1456 mg/L ,and the sludge dewatering ratio was nearly 56% in case of using (A.S.B)and about 84% of (T.R.D) technique. The sludge specific gravity was reached to 0.71.Treatment by (A.S.B) was found to cause significant reduction in total bacterial count while not cause significant reduction in worms count compared with the (T.R.D) technique which cause completely removal of microorganisms (bacteria & worms),organic matter content of the sludge was not significantly affected after the treatment ,sulphate and phosphate were significantly reduced by the treatment .In this study the treated sludge was used as organic fertilizer for corn plants and gave good results in improving some vegetative characters of the crop compared with non fertilized crop .

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