Currently, there are many methods of physical chemistry is used to treat wastewater contaminated with heavy metals such as glue, capacitors, electro-chemical adsorption, ion exchange ... [2]. With the progress of science and technology, the method of adsorption have been extensive research with the new adsorption material, high-efficient and environmental friendly. One of the materials that are magnetic bearing adsorption materials -PGM. This material is composed by the two main components are the magnetic particles of Fe3O4 and -poly glutamic acid (-PGA). Is a biological polymer capable of biodegradable non-toxic, bio-PGA study should be used in a variety of fields such as food industry, medicine and treatment [3]. In particular, when Government -up PGA magnetic particles Fe3O4, beyond the purpose of increasing the transport capacity and cleaning of polymer network, increase the efficiency of waste water treatment [3], can be recovered and reused many times, help save materials and operating costs. Besides, the application and reviews the effectiveness of materials processing -PGM has not been studied extensively in Vietnam.
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