Under the patronage of the President of the Northern Technical University, Prof. Dr. Alia Abbas Ali Al-Attar
2022-05-21
Mosul Technical Institute holds a workshop on “Using Subsurface Drip Irrigation Technology to Reduce Evaporation from the Soil Surface”
2022-05-21
Under the patronage of the President of the Northern Technical University, Prof. Dr. Alia Abbas Ali Al-Attar
2022-05-21
Mosul Technical Institute holds a workshop on “Using Subsurface Drip Irrigation Technology to Reduce Evaporation from the Soil Surface”
2022-05-21
Show all

Haweeja Technical Institute organizes a seminar on “when to change the filter media (sand)”

Under the patronage of the President of the Northern Technical University, Prof. Dr. Alia Abbas Ali Al-Attar, and under the supervision of Prof. Dr. Omar Khalil Ahmed, Dean of the Institute.

The Water Resources Technologies Department organized a symposium on “When to change the filter media (sand)”

The lecture was delivered at the symposium by Assistant Professor Rodhan Abdullah Saleh / the teaching staff in the department, and it was attended by a number of the institute’s employees and students.

The symposium dealt with the definition of the filtration process as the final treatment of water by getting rid of small particles that did not sediment during the initial treatment of water in the sedimentation basins, or those that were generated as a result of the coagulation process by passing water in a porous medium.

The seminar showed that the problems of sand filters can be divided into:

  1. Design and implementation problems: They are problems that appear as a result of errors in the design and implementation of filters and appear after the candidate enters service for the first time or after replacement or renewal work for filters.
  2. Operational problems: These are caused by poor operation or failure to maintain the filter.

The symposium aimed to change the filter media, which takes place in two cases:

  1. If the filter media has spoiled because of the clay balls.
    1. If it is mixed with another medium (pebbles) and it is not possible to separate them.

The seminar came out with the following recommendations:

  1. The process of good filter washing is of great importance in avoiding the problem of clay ball formation and is the main reason for changing the filter media.
    1. The virtual examination is important, but it is not possible to rely on it, and a decision was taken to change the filter media.
    1. The final and decisive decision is based on the results of the clay content experiment, if the results of the turbidity test exceed 1000 International Turbidity Units (NTU).

Comments are closed.