Acid heat treatment attapulgite water quality purifying agent
A technology of acid heat treatment and attapulgite, which is applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., to achieve the effects of avoiding energy consumption, improving physical adsorption performance, and avoiding excessive consumption
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Embodiment 1
[0052] A kind of acid heat treatment attapulgite water quality purifying agent, comprises the following steps:
[0053] A. Material selection processing
[0054] The attapulgite clay is naturally weathered for 15-30 days, and the moisture content of the attapulgite clay is reduced to 13% by drying;
[0055] B. Crushed and sieved
[0056] The attapulgite clay is pulverized and sieved, and the sieve mesh number is 90-120 mesh;
[0057] C. Acidification
[0058] Mix the attapulgite clay powder with dilute sulfuric acid with a molar concentration of 1.0mol / L for solid-liquid mixing, the solid-liquid weight ratio is 1:0.5, stir evenly, and stand at room temperature for 1 hour;
[0059] D. Alkaline neutralization
[0060] Neutralize the acidified attapulgite powder with 2mol / L alkali solution, adjust the pH value to 7, perform a solid-liquid separation, and keep the attapulgite powder;
[0061] E. Calcination
[0062] Dry and crush the alkali-neutralized attapulgite powder at ...
Embodiment 2
[0066] A kind of acid heat treatment attapulgite water quality purifying agent, comprises the following steps:
[0067] A. Material selection processing
[0068]The attapulgite clay is naturally weathered for 15-30 days, and the moisture content of the attapulgite clay is reduced to 13% by drying;
[0069] B. Crushed and sieved
[0070] The attapulgite clay is pulverized and sieved, and the sieve mesh number is 90-120 mesh;
[0071] C. Acidification
[0072] Mix the attapulgite clay powder with dilute sulfuric acid with a molar concentration of 2.0mol / L for solid-liquid mixing, the solid-liquid weight ratio is 1:2, stir evenly, and let stand at room temperature for 2 hours;
[0073] D. Alkaline neutralization
[0074] Neutralize the acidified attapulgite powder with a 4mol / L alkali solution, adjust the pH value to 7, perform a solid-liquid separation, and retain the attapulgite powder;
[0075] E. Calcination
[0076] Dry and crush the alkali-neutralized attapulgite powd...
Embodiment 3
[0080] A kind of acid heat treatment attapulgite water quality purifying agent, comprises the following steps:
[0081] A. Material selection processing
[0082] The attapulgite clay is naturally weathered for 15-30 days, and the moisture content of the attapulgite clay is reduced to 13% by drying;
[0083] B. Crushed and sieved
[0084] The attapulgite clay is pulverized and sieved, and the sieve mesh number is 90-120 mesh;
[0085] C. Acidification
[0086] Mix the attapulgite clay powder with dilute sulfuric acid with a molar concentration of 3.0mol / L for solid-liquid mixing, the solid-liquid weight ratio is 1:3, stir evenly, and let stand at room temperature for 3 hours;
[0087] D. Alkaline neutralization
[0088] Neutralize the acidified attapulgite powder with a 5mol / L alkali solution, adjust the pH value to 8, perform a solid-liquid separation, and retain the attapulgite powder;
[0089] E. Calcination
[0090] Dry and crush the alkali-neutralized attapulgite pow...
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