초록 ▼

A process wastewater treatment plant, and a process relating thereto, which converts process wastewater generated in battery manufacturing and the like into clean process water and sodium sulfate salt by treating the process wastewater to remove impurities and contaminants, including debris, oil/gre

A process wastewater treatment plant, and a process relating thereto, which converts process wastewater generated in battery manufacturing and the like into clean process water and sodium sulfate salt by treating the process wastewater to remove impurities and contaminants, including debris, oil/grease, heavy metal oxides, lead and other heavy metals, suspended solids, bacteria, organic compounds, and/or gases, from the wastewater to produce a clean neutral sodium sulfate brine, subjecting the brine to heat to obtain distilled water and sodium sulfate salt, and purifying the distilled water by reverse osmosis for reuse as clear process water.

대표청구항 ▼

[ I claim:] [1.] A process for converting sulfuric acid based process wastewater generated in battery manufacturing into clean process water and sodium sulfate salt, comprising the steps oftreating the process wastewater to remove impurities and contaminants, including debris, oil/grease, heavy meta

[ I claim:] [1.] A process for converting sulfuric acid based process wastewater generated in battery manufacturing into clean process water and sodium sulfate salt, comprising the steps oftreating the process wastewater to remove impurities and contaminants, including debris, oil/grease, heavy metal oxides, lead and other heavy metals, suspended solids, bacteria, organic compounds, and/or gases, from the wastewater to produce a clean neutral sodium sulfate brine, andsubjecting the brine to heat to produce distilled water and sodium sulfate salt wherein the subjecting the brine to heat step includes evaporating a portion of the brine to produce steam and a concentrated sodium sulfate brine, harvesting sodium sulfate salt from the concentrated sodium sulfate brine, and collecting distilled water as the steam produced during evaporation cools.