Figure 4. X-ray diffraction of heavy metal reduction studied (a) before treatment (b) after treatment

From

Reduction of Heavy Metal and Hardness from Ground Water by Algae

Anteneh Worku, Omprakash Sahu

Journal of Applied & Environmental Microbiology. 2014, 2(3), 86-89 doi:10.12691/jaem-2-3-5