Leakproof wall, and certain enzymes in the construction of a reservoir

摘要

The invention concerns a tank for a fluid product, having a bottom (4) and a resistant side wall (10) consisting of juxtaposed prefabricated panels (1) each comprising a wall element (2) covered, on its inner surface (22), with a continuous sealing sheet (3) extended by three parts (33, 33', 34) which cover respectively the lateral sides (23, 23') and the lower side (24) of the wall element (2) and overlap on the outside of the wall (10). Said wall is set on a slab (4) covered with sealing sheets (42) and the adjacent overlapping parts of the sealing sheets (3, 42) covering the assembly of panels (1) and the bottom (4) are tightly linked together. Such a tank which is easy to construct and maintain, can contain drinking water or a polluting product.