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                                                           Abstract



                                                    (บทคัดย่อภาษาอังกฤษ)

                       The purpose of this project is to improve the quality of the canal in Roong-aroon schocl Because our

               group saw the water that looked dirty and rotten in the gully We want to treat water. So we went to find out

               what can be treated with water. And remembered that Teacher Mon and Father Yot have been used EM

               (Effective microorganism) as a method to improve water quality


                       For this reason, our group are interested in water treatment with EM ball uses Em BALL to treat

               wastewater as Kru Mon and Dad Yot used to. Because EM BALL has a juline that collides with a bad juline in

               the lane because EM BALL can sink to the underground.


                       Can go down to destroy microorganisms under the lane. Because if only eliminated in bad julin water

               under the lane, it will continue to produce bad julienne. And mixed with the water surface


                       Work modification process The problem that must be solved is to change the water source used in the

               experiment from the running water source to New closed water sources, as water sources have to spend on

               sandbags.
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