Shell padding hardening and tempering pond used for mineralization after seawater desalination

Abstract

The invention provides a shell padding hardening and tempering pond used for mineralization after seawater desalination. The pond comprises a shell padding hardening and tempering pond body, a flushing water outlet area, a shell padding hardening and tempering pond water outlet area, a water and gas inflow channel and a shell flushing water and gas inflow system. A water outlet of the shell padding hardening and tempering pond water outlet area is formed in the side, opposite to the flushing water outlet area, of the shell padding hardening and tempering pond body. A natural fragmentation shell padding bed is arranged in a shell padding hardening and tempering pond reaction area and arranged on a hardening and tempering pond bottom plate. A plurality of transverse water and gas distribution pipes are evenly arranged on the hardening and tempering pond bottom plate and are connected with vertical water distribution pipes and vertical gas distribution pipes to be communicated with a shell padding hardening and tempering pond water and gas inlet channel. According to the hardening and tempering pond, pollution-free natural fragmentation shells serve as padding, the hardening and tempering pond is obvious in economic performance, and hygienic safety is better than that of calcium ore. Shell waste is subjected to resource utilization, and the hardening and tempering pond has the economic benefits and social benefits of energy conservation and emission reduction.

Description

technical field [0001] The invention relates to a shell filler conditioning tank used for mineralization after seawater desalination, belonging to the field of seawater desalination water treatment. Background technique [0002] The increasing scarcity of fresh water resources has become one of the most serious practical problems faced by human beings in the 21st century. Desalination of seawater is the main technical means to solve the crisis of freshwater resources. At present, most of the seawater desalination plants under construction and completed in China use SWRO technology. Due to the efficient retention of RO membranes, most of the ions in seawater are removed. The pH and hardness of the product water are low, lacking the mineral Ca needed by the human body 2+ and Mg 2+ , In addition, the sharp drop in pH value has a certain erosiveness on the old municipal pipe network. Therefore, desalinated water usually requires post-mineralization treatment to increase the h...

AI Technical Summary

Problems solved by technology

Among them, directly blending with other water sources cannot meet the requirements alone, and generally must be combined with other methods, which are easily constrained by conditions; while the method of directly adding chemicals is expensive, and the stability of water quality indicators is relatively poor; in comparison, the dissolved mineral method is the most economical and feasible. of

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