The scarcity of water has become a growing problem worldwide. search for new sources therefore intensified, and one these is greywater. objective this article to evaluate the effectiveness three different coagulants obtained from Moringa oleiferaseed (seed husk, ground seed, degreased) in synthetic methodology planned stages; first stage, seeds were selected, unsheathed, dried sun 24 hours, coa...

the efficiency of existing municipal wastewater treatment plants has been affected by the increase of incoming organic load caused by the expansions in developing countries. in the present investigation, the effect of chemically enhanced primary treatment (cept) process was studied on the enhancement efficiency of a municipal wastewater treatment plant in tehran, iran. jar test results showed a...

Seven new cases of pregnancy combined with von Willebrand's disease have been reported. Altogether the patients had 11 deliveries, and one abortion after 10 weeks' gestation. The diagnosis was based on the determination of the bleeding time, factor VIII coagulant activity (VIII C), factor VIII-related antigen (VIII RAg) and the ristocetin cofactor (VIII RCoF). Two of our 6 parturients showed pr...

Ocimum gratissimum belongs to the group of plants known as spices. The plant is an erect small plumb with many branches usually not more than 1m high. It familylabiatae, genus and species gratissimum. commonly scent leaf. This project focused on pharmacognostic coagulant activities ethanol extract leaves leaf was obtained using cold maceration then filtered concentrated rotary evaporator. used ...

The objective of this work is studying the use of chemicals to enhance primary treatment in municipal wastewater treatment plants, thereby reducing the cost of the secondary treatment stage. Jar tests using chemicals, polymers and sea water have been conducted to determine the best performing chemicals, alone and in combinations. The process performance parameters studied were pH, type and dosa...

The aim of this paper is to present the development and validation of a neural network model for on-line prediction of coagulant dosage from raw water characteristics. The main parameters influencing the coagulant dosage are firstly determined via a PCA. A brief description of the methodology used for the synthesis of neural models is given and experimental results are included. The training of...