Mercury metal-containing sewage treatment device

Abstract

The invention relates to the technical field of sewage treatment, in particular to a mercury-containing sewage treatment device. The technical problems that the adsorption effect is poor and toxic gas cannot be treated are solved. In order to solve the technical problems, the mercury-containing sewage treatment device is composed of a pre-stirring mechanism, a treatment mechanism and a stirring mechanism. Through the arrangement of a rotating motor, a rotating rod and a second stirring rod, the rotating rod at the output end of the rotating motor can drive a first stirring rod and the second stirring rod to rotate at the same time, crop residues and clay in a feeding hopper can be mixed for the first time, and then the crop residues and the clay can be mixed for the second time by the first stirring rod, so that the crop residues and the clay are mixed into an adsorbent with relatively high viscosity. After sewage enters a first treatment tank, metal mercury in the sewage can be quickly adsorbed by the adsorbent under the stirring action of water vapor, then the sewage is pumped into a second treatment tank through a circulating pump, and in the same way, the metal mercury in the sewage can be secondarily adsorbed by lime.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment device containing mercury metal. Background technique [0002] At present, the problem of environmental protection has attracted the attention of the whole world. The pollution of heavy metal sewage to the environment has become a global problem. Mercury is the only metal that exists in a liquid state at normal temperature and pressure. It is commonly known as mercury, and mercury has a strong cohesion , is stable in the air and evaporates at room temperature. With the rapid development of industries such as electroplating, leather, dyeing and mercury salts in my country, the discharge of a large amount of mercury-containing industrial wastewater has increasingly polluted the environment. Therefore, the sewage containing mercury metal needs to be discharged Discharge can only be carried out after the treatment reaches the standard, but there are many pro...

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Problems solved by technology

The inventor finds in the process of realizing this scheme that there are following problems in the prior art and has not been well resolved: 1. The device effectively adsorbs heavy metal mercury through the adsorption powder attached to the columnar support net. This adsorption powder is usually Activated carbon powder has a small adsorption capacity for mercury ions and difficult regeneration, so the cost of wastewater treatment is expensive, and the adsorption capacity of activated carbon powder is easily affected by other metals in the sewage; 2. The device only performs one adsorption, when the concentration of metal mercury When it is high, the metallic mercury cannot be completely adsorbed; 3. The device cannot process the gas generated during the adsorption, and it is easy to cause the gas containing metallic mercury to float into the air

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