Japan uses waste to produce ceramic products

The use of various wastes to develop and produce a variety of ceramic building materials is also a major measure to eliminate pollution, purify the environment and turn waste into waste. It is of great significance to the implementation of sustainable development strategies.
In July 2003, Japan had developed a technology to produce ceramic permeable bricks from incineration of sewage sludge. The amount of incinerated ash used for ceramic permeable bricks accounted for 44.2% of the weight of bricks, and the amount of waste tiles used as aggregates accounted for 48.5% of the weight of bricks. The binder used in the upper layer of the brick is also a waste glaze, so the total amount of waste in the brick is up to 95%. The interior of the ceramic permeable brick forms many microscopic continuous pores with high strength and excellent water permeability.
Japan has also developed a technology that uses sewage sludge incineration ash as raw materials for the manufacture of building red bricks; uses casting waste to manufacture lightweight high-strength foam ceramics and hydroponic cultivation support materials, artificial soil ponds, and interior trim filling materials; and uses casting factories. Dust collection is used to produce sintered porous ceramics for water filtration and dirt purification. The use of cast sand, glass mortar, etc. to burn ceramic tiles has a flexural strength of 217 Newtons per square meter and a water absorption rate of about 3%. Others include the use of ceramic fragments to make sound-absorbing and eliminating nitrogen dioxide composite functional materials; ceramic sintered body made of electroplating waste sludge as raw materials, and silver carrier treatment to obtain antibacterial ceramics; use of white silica mines to discharge waste sludge Low-grade porcelain stones and many other techniques for making permeable bricks.