This research aims to study the effectiveness of each(ferric chloride , ash and coffee
dregs) to remove phosphorus from Lattakia Port Laboratories' waste water which is
assembled in a separate sewage pit by doing laboratory experiments on water con
taining
high concentrations of phosphorus, whether real wastewater or standard solutions of
phosphorus oxide. Where it has been experimenting with ferric chloride at doses as weight
average(FeCl3/P = (0-5)) to give effectiveness ratios(70- 80)% with determining the value
of the pH-compliant and it was noted re-releasing of phosphorus time after(10-12) hours of
the start of precipitation, beside that it has been experimenting with ash as adsorpted agent
at doses as weight average(Ash/P = (2-4.5)) to give effectiveness ratio which it had
reached to 98% where it was noted re-releasing of phosphorus after 11 hours with
determining the pH values of approval for that, As coffee dregs when added in
doses)Coffee dreg/P = 3-10) as weight average, it fulfilled proportion removal(40 - 99) %
and phosphorus re-released after 24 hours. The outcome of these experiments was to
propose the most appropriate economic solution in the case of study.
This research focused on one of the stages of the conventional treatment of water
in the purification stations, a process of coagulation, which enhanced by using
alternatives to alum; such as Ferric Chloride and Poly Aluminum-chloride (PACl),
whic
h play an important role to reducing the turbidity of drinking water through
the destabilization of colloids, which include organic and inorganic materials in
order to increase the efficiency of sterilization and disposal of the side effects of
sterilization (DBPS) and to minimize the problems of clogged sand filters due to
an increase of the turbidity of water inside it. According to that, three types of
coagulant agents were used for the purpose of comparison with each other to achieve
the best efficiency in the process of reducing water turbidity through a process
of coagulation improved by using (Jar-test). Different concentrations of coagulant
agents of irrigation water were used depending on experiments. The results found
that urinary chloride aluminum gave the highest efficiency in reducing turbidity by
(84, 82 and 81%) according to the addition of concentration for coagulation (20
ppm, 10 ppm and 5ppm), respectively. The reduction rates in turbidity for Ferric
chloride were (79, 78.2 and 78.1% ) by concentrations added, respectively, but for
alum, the reduction rates in turbidity were (58, 56, and, 54%) by concentrations
added, respectively.
