Method and apparatus for removing noxious ion in ground water by means of powder sorbent
A technology of adsorbent and groundwater, applied in the fields of adsorption water/sewage treatment, chemical instruments and methods, water/sewage treatment, etc., to achieve the effects of increasing production, reducing water consumption, and increasing the probability of collision
Inactive Publication Date: 2010-11-10
TSINGHUA UNIV
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Problems solved by technology
The purpose of the present invention is to propose a new method and device for removing harmful ions in groundwater by using powdered adsorbents for the three key technical links that need to be solved in purifying inferior groundwater using powdered adsorbents
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Abstract
The invention relates to a method and device for removing the harmful ions in the ground water using a powder adsorbent belonging to the field of drinking water purification technology. The technology of the invention is characterized in that fiber moulding fillings intercepts the adsorbent to prolong the retention time of the adsorbent particles by adding adsorbent powder into the branch flow ofthe water to be treated, improves the collision probability of the adsorbent and the harmful ions. The air is intervally charged and the filling layer is stirred to discharge the adsorbent with a saturated adsorption capacity, the suspended matters with different specific gravity are separated from water by the two-stage separation method combining in series micro bubbles float and filter bag. The method of the invention enables the powder adsorbent to rapidly and uniformly disperse in the water, makes full use of the adsorption ability of the adsorbent, separates the suspended particles withdifferent specific gravity from water, effectively removes the fluoride and harmful ions such as arsenic, iron and manganese in the ground water, reduces the water consumption for the water treatmenttechnology and improves recovery rate and water supply quality of the product water.
Description
A method and device for removing harmful ions in groundwater by using powder adsorbent technical field The invention relates to a method and device for removing harmful ions in groundwater, in particular to a method for removing harmful ions in groundwater by using a powder adsorbent and purifying inferior groundwater into drinking water, which belongs to the technical field of drinking water purification. Background technique Groundwater often contains ions such as fluoride, arsenic, iron, and manganese that are harmful to human health. Groundwater containing harmful ions is also called poor-quality groundwater. Poor-quality groundwater must be purified before it can be used as drinking water. The conventional purification method of inferior groundwater is: add coagulant to make it undergo hydrolysis reaction, the reaction product is floc, the floc is separated from water after sedimentation and filtration, and the water from which suspended solid impurities are separated...
Claims
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IPC IPC(8): C02F9/02C02F1/28C02F1/58C02F1/24
Inventor 李振瑜刘沫
Owner TSINGHUA UNIV