IOP Conference Series: Earth and Environmental Science PAPER • OPEN ACCESS Harvesting effectiveness of Chlorella sp. biomass using different flocculation treatments of Moringa oleifera extract and pH conditions To cite this article: Wasiatul Maghfiroh et al 2018 IOP Conf. Ser.: Earth Environ. Sci. 209 012014 View the article online for updates and enhancements. This content was downloaded from IP address 168.151.9.34 on 21/12/2018 at 11:38