ABSTRACT Heavy metals such as Cr (VI) and Ni contained in wastewater from electroplating processes are included in toxic and hazardous wastes. An alternative technology for removing Cr (VI) and Ni metals in electroplating wastewater is biosorption using microalgae Chlorella sp. Chlorella sp. has the ability to respond to the toxic effects of heavy metals by forming phytochelatin. Phytochel…