CN104888693A - Heavy metal adsorbing granule containing ginkgo leaves and preparation method of heavy metal adsorbing granule - Google Patents

Abstract

The invention discloses a heavy metal adsorbing granule containing ginkgo leaves. The heavy metal adsorbing granule is characterized by being prepared from the following raw materials in parts by weight: 30-40 parts of ginkgo leaves, 5-10 parts of waste porcelain powder, 3-5 parts of zeolite powder, 1-2 parts of soyabean protein powder, 2-4 parts of kawo kawo fibers, 3-5 parts of light weight calcium carbonate, 0.1-0.2 part of potassium cocoyl glycinate, 0.1-0.2 part of sodium benzoate, 0.5-1 part of a citric acid, 0.1-0.2 part of glycine, and 5-10 parts of an adhering auxiliary material. The adsorbing granule disclosed by the invention is high in adsorption capacity, not only can effectively adsorb and remove heavy metal ions in a water body, but also has a definite effect of adsorbing and removing nitrogen and phosphorus organic compounds in the water body, is high in water purification capacity, is good in economical efficiency, and does not generate secondary pollution to the environment. Base material sources are rich, and base materials are natural and easy to obtain.

Description

A kind of ginkgo leaf heavy metal adsorption granule and preparation method thereof

Technical field

The present invention relates to water treatment field, be specifically related to a kind of ginkgo leaf heavy metal adsorption granule and preparation method thereof.

Background technology

Due to developing rapidly of industry, heavy metal pollution is more serious, and wherein the industry such as electronics, plating, process hides, ore dressing produces a large amount of industrial wastewater containing heavy metal ion every year, and the process problem of thing followed heavy metal wastewater thereby is the emphasis paid close attention to, study always.Heavy metal can not be biodegradable in the environment, tend to enrichment in the body of living, by biological chain at people's cylinder accumulation, destroy normal physiological metabolism activity, even produce " three cause " (carcinogenic, teratogenesis, mutagenesis) material, very harmful, therefore need cost-effective method to remove various heavy metal ion in water body.

Traditional heavy metal polluted waste water processing method comprises chemical precipitation method, ion-exchange, membrane separation process, solvent extraction and oxidation-reduction method etc., they respectively have advantage, but all there is limitation, embody a concentrated reflection of that cost is high, power consumption is large, operating difficulties, easily produce in secondary pollution problems, particularly when processing low content heavy metal polluted waste water, its operating cost is relative with the cost of raw material too high.Therefore, seek cheapness, heavy metal absorbent that is efficient, that be easy to process more and more comes into one's own, there is good advantage and development prospect.

Summary of the invention

The object of this invention is to provide a kind of ginkgo leaf heavy metal adsorption granule, heavy metal adsorption capacity be large, high adsorption capacity, host material abundance, to be naturally easy to get, good economy performance.

The present invention is achieved by the following technical solutions:

A kind of ginkgo leaf heavy metal adsorption granule, it is obtained by the raw material of following weight parts:

Ginkgo leaf 30-40, useless porcelain powder 5-10, zeolite powder 3-5, soyabean protein powder 1-2, bombax cotton 2-4, precipitated calcium carbonate 3-5, cocounut oil acyl glycine potassium 0.1-0.2, Sodium Benzoate 0.1-0.2, citric acid 0.5-1, glycine 0.1-0.2, bonding auxiliary material 5-10;

The auxiliary material that wherein bonds is made up of the raw material of following weight portion:

Glutinous rice flour 10-15, agar powder 0.5-1, xanthans 1-2, carragheen 1-2, water-soluble lanolin 1-2, maltodextrin 1-2, polyethylene glycol 2-4, sucrose 2-4, water 40-50;

The preparation method of bonding auxiliary material is:

First maltodextrin, polyethylene glycol, water-soluble lanolin and sucrose are added to the water to be stirred to and dissolve completely, add xanthans again, carragheen 60-80 DEG C, 400-600r/min stir 1-2h, add agar powder 90-95 DEG C again, 400-600r/min stirs 0.5-1h, 0.5-1h is stirred under adding glutinous rice flour similarity condition again, after dry, grinding evenly, to obtain final product.

A preparation method for ginkgo leaf heavy metal adsorption granule, comprises the following steps:

(1) the rear 200-300 DEG C of process 2-4h of porcelain powder, zeolite powder, bombax cotton and precipitated calcium carbonate mixing of giving up, soyabean protein powder, cocounut oil acyl glycine potassium and ginkgo leaf co-ground is added even after cooling, add water by solid-liquid weight ratio 1:2-1:3 and in 80-90 DEG C, stir 6-8h under 400-600r/min condition, after dry, grinding evenly, obtains active powder;

(2) active powder is mixed with all the other raw materials, then by solid-liquid weight ratio 5:1-4:1 add water prior to 50-60 DEG C, 400-600r/min stirs 1-2h, then add wet granulator granulation and obtain wet granular; By described wet granular prior to 80-90 DEG C of dry 24-36h, then in 200-250 DEG C of process 2-4h, finally cross 10-20 mesh sieve, to obtain final product.

Advantage of the present invention is:

(1) by main material ginkgo leaf and other compatibilities of filling a prescription, by simply processing obtained granule, specific area is large, high adsorption capacity, adsorption capacity is large, can not only effectively adsorb, the heavy metal ion removed in water body, have certain Adsorption effect to Water phosphorus organic matter, water body purification ability is strong simultaneously; (2) obtained granule intensity is large, good forming effect, be easy to be separated from water body, is conducive to the removal of heavy metal, recovery; (3) host material abundance, to be naturally easy to get, good economy performance, and secondary pollution is not produced to environment.

Detailed description of the invention

Non-limiting examples of the present invention is as follows:

A kind of ginkgo leaf heavy metal adsorption granule, is prepared from by the component raw material of following weight (kg):

Ginkgo leaf 35, useless porcelain powder 8, zeolite powder 4, soyabean protein powder 1.5, bombax cotton 3, precipitated calcium carbonate 4, cocounut oil acyl glycine potassium 0.15, Sodium Benzoate 0.15, citric acid 0.8, glycine 0.15, bonding auxiliary material 8;

Wherein, the auxiliary material that bonds is made up of the raw material of following weight portion:

Glutinous rice flour 12, agar powder 0.8, xanthans 1.5, carragheen 1.5, water-soluble lanolin 1.5, maltodextrin 1.5, polyethylene glycol 3, sucrose 3, water 45;

The preparation method of bonding auxiliary material is:

First maltodextrin, polyethylene glycol, water-soluble lanolin and sucrose are added to the water to be stirred to and dissolve completely, add xanthans again, carragheen 80 DEG C, 400r/min stir 1h, add agar powder 95 DEG C again, 400r/min stirs 0.5h, 0.5h is stirred under adding glutinous rice flour similarity condition again, after dry, grinding evenly, to obtain final product.

The preparation method of ginkgo leaf heavy metal adsorption granule comprises the following steps:

(1) the rear 300 DEG C of process 2h of porcelain powder, zeolite powder, bombax cotton and precipitated calcium carbonate mixing of giving up, soyabean protein powder, cocounut oil acyl glycine potassium and ginkgo leaf co-ground is added even after cooling, add water by solid-liquid weight ratio 1:2 and in 90 DEG C, stir 6h under 600r/min condition, after dry, grinding evenly, obtains active powder;

(2) active powder is mixed with all the other raw materials, then by solid-liquid weight ratio 5:1 add water prior to 60 DEG C, 600r/min stirs 1h, then add wet granulator granulation and obtain wet granular; By described wet granular prior to 90 DEG C of dry 24h, then in 200 DEG C of process 3h, finally cross 10 mesh sieves, to obtain final product.

The adsorption particle agent 5g taking above-mentioned preparation adds the reactant aqueous solution 6h of the leaded 200mg/L of 1L, obtains clearance >98%;

The adsorption particle agent 5g taking above-mentioned preparation adds the reactant aqueous solution 6h of the phosphorous 30mg/L of 1L, obtains clearance >95%.

Claims (2)

1. a ginkgo leaf heavy metal adsorption granule, is characterized in that, it is obtained by the raw material of following weight parts:

Ginkgo leaf 30-40, useless porcelain powder 5-10, zeolite powder 3-5, soyabean protein powder 1-2, bombax cotton 2-4, precipitated calcium carbonate 3-5, cocounut oil acyl glycine potassium 0.1-0.2, Sodium Benzoate 0.1-0.2, citric acid 0.5-1, glycine 0.1-0.2, bonding auxiliary material 5-10;

Described bonding auxiliary material is made up of the raw material of following weight portion:

Glutinous rice flour 10-15, agar powder 0.5-1, xanthans 1-2, carragheen 1-2, water-soluble lanolin 1-2, maltodextrin 1-2, polyethylene glycol 2-4, sucrose 2-4, water 40-50;

The preparation method of described bonding auxiliary material is:

First maltodextrin, polyethylene glycol, water-soluble lanolin and sucrose are added to the water to be stirred to and dissolve completely, add xanthans again, carragheen 60-80 DEG C, 400-600r/min stir 1-2h, add agar powder 90-95 DEG C again, 400-600r/min stirs 0.5-1h, 0.5-1h is stirred under adding glutinous rice flour similarity condition again, after dry, grinding evenly, to obtain final product.

2. the preparation method of a kind of ginkgo leaf heavy metal adsorption granule according to claim 1, is characterized in that, comprise the following steps:

(1) the rear 200-300 DEG C of process 2-4h of porcelain powder, zeolite powder, bombax cotton and precipitated calcium carbonate mixing of giving up, soyabean protein powder, cocounut oil acyl glycine potassium and ginkgo leaf co-ground is added even after cooling, add water by solid-liquid weight ratio 1:2-1:3 and in 80-90 DEG C, stir 6-8h under 400-600r/min condition, after dry, grinding evenly, obtains active powder;

(2) active powder is mixed with all the other raw materials, then by solid-liquid weight ratio 5:1-4:1 add water prior to 50-60 DEG C, 400-600r/min stirs 1-2h, then add wet granulator granulation and obtain wet granular; By described wet granular prior to 80-90 DEG C of dry 24-36h, then in 200-250 DEG C of process 2-4h, finally cross 10-20 mesh sieve, to obtain final product.