The present invention provides a magnetic apparatus for wastewater treatment, comprising a wastewater treatment tank having wastewater and plurality of magnetically separable adsorbents, an inlet for providing the wastewater in the wastewater treatment tank, a mixing equipment configured to form a mixture of the wastewater and the plurality of magnetic separable adsorbents, an outlet for taking out treated water from the wastewater treatment tank, plurality of magnet bars provided at a bottom end of the wastewater treatment tank and a magnet controller configured to control the plurality of magnet bars. Further, a method for wastewater treatment is also provided.