... activities, ex-situ remediation, landfill operations, composting facilities, storage companies, shipping. Treatment, recycling, and processing facilities: physical separation of wastewater, physico-chemical treatment of wastewater, acids, bases, ... (neutralization, metal precipitation), biological purification of wastewater with advanced nitrogen removal. Activated carbon treatment. TWZ also has a fully equipped harbor reception facility (HOI) located in the Ghent waiting harbor.