I.Introduction to geothermal water

Geothermal energy is a comprehensive and useful mineral. As a new type of energy, it has the advantages of wide distribution, cleanliness and direct utilization. Humans can use hot springs for treating diseases and bathing. With the continuous development of human society, the scope of geothermal energy development and utilization has become increasingly broad and has received widespread attention from countries around the world. Especially since the 1970s, population growth, global energy shortages, the continuous rise in fuel prices, and the environmental harm caused by the consumption of mineral energy have made humanity pay more attention to the development and utilization of geothermal energy. Geothermal water itself has a relatively high temperature and contains various chemical components and a small amount of bioactive ions, which can be beneficial and valuable to the human body.

Ii. Effluent Quality Standards

Purified water meets the hygiene standards for domestic drinking water.GB5749-85The relevant indicators can be used for swimming pools and bathing.

Iii.Process flow

Iv. Process Principle

This process is an aeration contact oxidation iron removal process. The sand particles in the raw water are separated and settled through a desander. The air compressor evenly injects air into the geothermal water through a titanium tube aeration device. The air and water are thoroughly mixed through the dissolved oxygen aeration device, and the waterFe2+Oxidize toFe3+At the same time, it oxidizes and disperses a partH2SThe gas is then adsorbed and filtered out by iron and manganese removal equipment and activated carbon filtration equipment (composed of well-graded natural mineral fillers)FeandH2SThe purified geothermal water can be directly fed into the water tank. Since the general aeration oxidation method does not add a catalyst, the oxidation rate is slow. However, when the geothermal water after aeration is filtered through the filter layer, the waterFeThe iron or manganese active filter membranes with catalytic effects are gradually formed by the adsorption of the filter material (in which iron and manganese such as Lactobacillus ferrii, single-celled iron, and Trichomonas rustans grow). Under the catalytic effect of this filter membrane, the oxidation rate of iron and manganese will be greatly accelerated and then removed by the filter material.

V. Process Description

This process adopts a treatment flow of magnetization - aeration - manganese sand - activated carbon filtration, which can simultaneously remove iron and hydrogen sulfide, eliminate odors, and ensure that the effluent quality meets the standards for geothermal water. This project adopts a closed governance process, It can minimize heat loss to the greatest extent. Geothermal water is pumped into the titanium tube aeration device by a deep well pump, and air is evenly filled into it through an air compressor to initially oxidize and remove part of the hydrogen sulfide odor. The sand particles in the geothermal water are then settled through a desander. Subsequently, the water is mixed and reacted through a dissolved oxygen aerator, filtered by manganese sand, and adsorbed by activated carbon to remove iron and residual hydrogen sulfide odors from the water. The effluent that has been treated and qualified through the above process enters the water storage tank and then is directly pumped into the water supply pipeline by the water supply pump for use in the villa.

Vi. Process Characteristics

⑴Compared with other processes, this process adopts our company's magnetization technology, fully enclosed, small air volume, aeration process and proprietary technology, reducing the temperature drop point, and there is almost no temperature loss of geothermal water before and after treatment.

⑵This process does not use activated carbon adsorbers. The treated geothermal water not only meets the usage requirements but also retains beneficial mineral components for the human body.

⑶The selection and gradation of the magnetic separator packing are scientific and reasonable, and the treatment effect is reliable, Regeneration can be achieved by backwashing with raw water.

⑷The titanium tube aeration device process ensures uniform aeration, does not clog, and requires almost no maintenance, providing favorable conditions for subsequent processes.

⑸The process is simple and practical, with low investment, small land occupation, low operating costs, and can provide continuous, reliable water supply.

⑹The technology that features simple equipment selection, low investment, low processing cost, stable and reliable operation, high processing efficiency, and flexible and simple operation and management.