Metal oxide-based putties, and metal oxide-based fillers and pastes for use in industry, namely for wastewater purification, medicine, food, agriculture, adhesives and plastics; metal oxide-based chemical and organic compositions for use in the manufacture of food and beverages; detergents for use in manufacture and industry; adhesives for use in industry; filtering materials consisting of ceramic porous particles; growing media for plants, fertilizers and chemicals for use in agriculture, ho...