Sludge brick based on sludge of sewage treatment plant and preparation method of sludge brick

The invention provides a sludge brick based on sludge of a sewage treatment plant and a preparation method thereof, and belongs to the technical field of building materials.The sludge brick based on the sludge of the sewage treatment plant is prepared from, by weight, 50-70 parts of sewage sludge, 8-12 parts of a reinforcing agent, 8-10 parts of ceramic disintegrating slag and 6-8 parts of a heavy metal ion capturing agent; 3-4 parts of a deodorant and 9-12 parts of water. The sludge brick is prepared from the domestic sewage sludge, so that the sludge disposal problem is reduced, the influence of the domestic sewage sludge on the environment and human health is avoided, and the cyclic utilization of resources is realized; in addition, through the limited preparation process, generation and emission of waste gas are reduced, up-to-standard emission of waste water is ensured, the influence on the environment is reduced, the prepared sludge brick has excellent mechanical properties, and the application prospect