A laboratory model for the adsorption and loss of the sulfate transport in multi porous media of soil
الباحث الأول:
Najeeb Alnsrawy
الباحثين الآخرين:
Sadiq S. Muhsun2
Zainab T. Al-Sharify
المجلة:
Journal of Engineering and Sustainable Development
تاريخ النشر:
13 إبريل، 2021
مختصر البحث:
Development of industries and agriculture,
salts, especially sulfates, used in many industries, such as
fertilizers and pesticides, have become one of the most
common problems. In this paper, a laboratory model was
established to study the s…
Development of industries and agriculture,
salts, especially sulfates, used in many industries, such as
fertilizers and pesticides, have become one of the most
common problems. In this paper, a laboratory model was
established to study the sulfate-contaminated transport
process. Four samples of porous media contain the same
pollutant, sandy soil, sandy gravel soil, agricultural
(organic) soil, and calcareous soil. Where a pollutant is
pumped at a concentration of 280 mg/l through a system
consisting of a tube of length 4 meters and 8 cm thickness
and distributed in the soil Each type is one meter. The
results showed that all types of soils, except organic, had
leaching or loss of sulfates from the soil and dissolving
them with a soil solution. The transfer of pollutants from
soil to the solution may reach between 50 to 300 mg/l per
meter, while organic soil showed the ability to Absorption
up to 100 mg/L per meter. However, it was found that
organic soil contains the largest amount of sulfate and was
able to adsorption, and it was found that bacterial activity
has a role in reducing sulfate in organic soil and thus
returning the soil to adsorption after a certain time of
saturation process.
