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Coagulation process treatment method for machine-made sand cleaning water

A treatment method and machine-made sand technology, applied in water/sewage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve problems such as incomplete treatment of impurities

Active Publication Date: 2021-05-14
HUAXIN CEMENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Another example is the Chinese patent document with the notification number CN109160621A disclosing the treatment method of concrete machine-made sand wastewater. However, the machine-made sand wastewater in the patent is treated by physical and mechanical methods, and the soil colloid in the water still exists in the water body, and the treatment of impurities is not complete enough.

Method used

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  • Coagulation process treatment method for machine-made sand cleaning water

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Embodiment 1

[0021] 1. Dilute water glass to a concentration of 8%, then slowly add to dilute H under high-speed stirring 2 SO 4 In the solution, the pH is controlled at about 3, and polymerized at 50° C. for a period of time to obtain a polysilicic acid solution. FeSO was then distilled with distilled water 4 . 7H 2 O is configured into a solution with a certain concentration, and according to the molar ratio of Si / Fe=1 / 1, the ferrous salt is added to the prepared polysilicate solution, fully stirred for 60 minutes, and aged to obtain polysilicate ferric salt;

[0022] 2. The cleaning liquid includes organic coagulant dimethyl diallyl ammonium sulfate solution and inorganic coagulant polysilicate iron salt solution, wherein the concentration of dimethyl diallyl ammonium sulfate solution is 0.4 (wt)% , polysilicate iron salt solution is 0.2 (wt)%;

[0023] 3. Collect the turbid waste water formed by cleaning the machine-made sand, add the cleaning solution evenly into the turbid water...

Embodiment 2

[0026] 1. Dilute water glass to a concentration of 5%, then slowly add to dilute H under high-speed stirring 2 SO 4 In the solution, the pH is controlled at about 3, and polymerized at 60° C. for a period of time to obtain a polysilicic acid solution. Then use distilled water to make industrial aluminum sulfate into a solution with a certain concentration. According to the molar ratio of Si / (Al)=1.5 / 1, add the aluminum salt into the prepared polysilicate solution, stir it thoroughly for 40 minutes, and then age it to obtain the polysilicate. Aluminum silicate;

[0027] 2. The cleaning solution includes organic coagulant dimethyl diallyl ammonium chloride solution and inorganic coagulant aid polysilicate aluminum salt solution, wherein the concentration of dimethyl diallyl ammonium chloride solution is 0.3 (wt )%, the polysilicate aluminum salt solution is 0.15 (wt)%;

[0028] 3. Separation of mud and water: collect the turbid waste water formed by cleaning the machine-made ...

Embodiment 3

[0031] 1. Dilute water glass to a concentration of 8%, then slowly add to dilute H under high-speed stirring 2 SO 4 In the solution, the pH is controlled at about 2, and polymerized at 60° C. for a period of time to obtain a polysilicic acid solution. FeSO was then distilled with distilled water 4 . 7H 2 O and industrial aluminum sulfate are configured into a solution of a certain concentration, wherein n(Fe):n(Al)=1:1, and the ferrous salt and aluminum salt are mixed according to the molar ratio of Si / (Fe+Al)=1 / 1 Add it into the prepared polysilicate solution, stir thoroughly for 30 minutes, and then age to obtain polyaluminum iron silicate;

[0032] 2. The cleaning solution includes organic coagulant dimethyl diallyl ammonium sulfate solution and inorganic coagulant polyaluminum iron silicate solution, wherein the concentration of dimethyl diallyl ammonium sulfate solution is 0.4 (wt)% , polyaluminosilicate ferric solution is 0.2 (wt)%;

[0033] 3. Collect the turbid w...

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Abstract

The invention relates to a coagulation process treatment method for machine-made sand cleaning water. The coagulation process treatment method comprises the following steps that: S1, a coagulant aid is prepared; S2, a cleaning solution is prepared, wherein the cleaning solution comprises an organic coagulant dimethyl diallyl ammonium salt solution and an inorganic coagulant aid polysilicate metal salt solution; S3, mud-water separation is carried out, namely, turbid wastewater generated by cleaning the machine-made sand is collected, the cleaning solution is uniformly added into the turbid wastewater through a material distributor, and large floc particles formed after reaction are fed into a spiral filtering and conveying device to realize rapid solid-liquid separation of the mud-water; and S4, the water is cyclically utilized, namely, the separated water is pumped into a machine-made sand cleaning tank to realize cyclic utilization of the water for cleaning the machine-made sand. The machine-made sand cleaning water is recycled, and the working performance and the mechanical performance of the machine-made sand concrete are improved. According to the coagulation process treatment method for machine-made sand cleaning water, the machine-made sand cleaning water is recycled, and the working performance and the mechanical performance of machine-made sand concrete are improved.

Description

technical field [0001] The invention relates to the technical field of machine-made sand tail water treatment for concrete, and more specifically, relates to a coagulation treatment method of machine-made sand cleaning water. Background technique [0002] Manufactured sand is also called artificial sand, that is, mountain stones, river pebbles, etc. are processed into sand with low mud content, rough surface, and different particle size specifications after crushing, grading, cleaning and other processes. During the processing of machine-made sand, a large amount of clean water is required in the cleaning process. If it is discharged into the river without effective treatment, it will cause local siltation in the river, the elevation of the river bed will affect the flow efficiency, and a large amount of mud and sand will seriously damage the ecological environment of the river and the river. Hydrological landscape of a body of water. Therefore, after the machine-made sand ...

Claims

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Application Information

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IPC IPC(8): C02F1/54C02F1/52
CPCC02F1/5236C02F1/542C02F1/54Y02W30/91
Inventor 秦节发陈超余松柏石华任政张恒谭建湘
Owner HUAXIN CEMENT
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