CALGARY, AB, Sept. 24, 2025 /CNW/ - Northstar Clean Technologies Inc. (TSXV: ROOF) (OTCQB: ROOOF) ("Northstar" or the "Company") is pleased to announce it successfully separated and recovered ...

Mumbai: Gujarat and Rajasthan will auction a total of eight limestone mines through the e-auction route, according to notifications for the sale of tender documents put out by the state governments.

Septic tanks are the second largest source of groundwater nitrate contamination. In this study, the feasibility of coupling a conventional lateral field with a sulfur-limestone (S/L) layer to treat ...

Researchers have managed to speed up a natural process that normally takes thousands of years, creating a lab “machine” to capture carbon dioxide. A new study shows how limestone, dolomite, and ...