Treatment Produced Water Using Microalgae
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Date
2023
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Publisher
جامعة سبها
Abstract
produced water is consider as one of the main attraction topics in the oil
fields, which the formation water comes to the surface with the crude oil and
it is separated to avoid many problems that may occur during the
transportations. However, the produced water sometimes inject it into
artificial lake inside the fields. the water of those lake is caused a pollution
for the sands, animals, plants and formation water as well. Therefore, the
proper treatment of produced water is very important because it contains
minerals and inorganic salts.
This study focused on the treatment of produced water using organic
materials, which are freshwater algae, and its effects on reducing the salts
present in the formation water.
In this study, three types of freshwater algae have been used, namely:
Oedogonium alga
Zygnema alga
dead algae
The effect of each Ph, Electrical Conductivity (E.C), total dissolved solids
TDS, and salinity performed before and after the treating at different times;
the first day, the fourth day, and the seventh day. The best result wat at the
first day, with regard to oedogonium, where the TDS decreased from 5364
mg / l to 1381 mg / l , pH changed from 7.13 to 8.7, E.c decreased from
10.95 ms/cm to 2.818 ms/cm, and salinity decreased from 6.2 ppt to 1.6 ppt,
as well as heavy salts decreased significantly in several elements, and the
treated produced water was used for irrigation of plants and animals, and it
did not result in any effects.
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Keywords
water treatment, microalgae, Produced water, Salinity