For 'tis written

Papyrus, perhaps best known as the earliest mobile medium for the written word (stone tablets being less portable), could have a new use in cleaning up waste water destined for tropical rivers and lakes. Robinson Odong and colleagues at Makerere University in Kampala, Uganda, have demonstrated that the papyrus sedge, a wetland grass can absorb otherwise toxic metals and organic compounds from slaughterhouse effluent that pours into the Nakivubo wetlands and ultimately reaches Lake Victoria. Growing large areas of this plant close to the outlets might improve water quality considerably. The same species could also be used for detoxifying effluents from other industries.