TREATMENT, DISPOSAL AND RECYCLING METHOD OF DEWATERED ORGANIC SLUDGE BY PRODUCTION PROCESSES OF CERAMICS

摘要

The present invention relates to the treatment, disposal and recycling of organic dewatered sludge discharged from sewage water treatment plant, and more specifically, to the organic dehydrated sludge discharged from sewage waste water treatment plant, which is a raw material of ceramic products such as clay bricks or sidewalk blocks. Inorganic materials with clay-like properties are used to recycle organic sludge in the process of producing ceramic products, and to complete the treatment and final disposal. ; The present invention partially dehydrates organic sludge without pretreatment or by using waste heat from the process of firing the ceramic product above the moisture content required for molding the ceramic product, and then similar to clay or clay which is a raw material for manufacturing the ceramic product. In the process of mixing up to 50% of the inorganic material with a weight ratio of the dry matter, supplying the moisture required for the molding of the product, it is molded in the form of the final product by pressing, extrusion or vacuum extrusion. As the molding is dried and calcined, the moisture contained in the sludge is evaporated, the organic matter is volatilized and burned at a high temperature, and the inorganic components are fixed by sintering together with the clay so that residues from the heat treatment of the sludge are not necessary. Not only that, but it can also be used as it is, or in part, as a reinforcement of the pottery process that has already been proven and used in industrial sites, so that sludge can be treated without building a separate facility. Therefore, this method not only saves the construction cost of sludge treatment facilities, but also the energy used to manufacture ceramic products can be used for heat treatment such as sludge drying and incineration. It eliminates the need for use and solves the problem of disposal of residual residue after heat treatment, which can produce value added construction materials such as clay brick and lightweight brick while effectively preventing environmental pollution due to residue disposal. ; Organic Dewatering Sludge, Sludge Treatment Facility, Clay Brick, Lightweight Brick, Firing Process, Recycling, Ceramic Products