WO1998037025A1 - Process for separating heavy metals from industrial residues by using a ultrasound floatation and eucalyptus as sequestering agent - Google Patents
Process for separating heavy metals from industrial residues by using a ultrasound floatation and eucalyptus as sequestering agent Download PDFInfo
- Publication number
- WO1998037025A1 WO1998037025A1 PCT/MX1998/000006 MX9800006W WO9837025A1 WO 1998037025 A1 WO1998037025 A1 WO 1998037025A1 MX 9800006 W MX9800006 W MX 9800006W WO 9837025 A1 WO9837025 A1 WO 9837025A1
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- WO
- WIPO (PCT)
- Prior art keywords
- metals
- industrial
- flotation
- toxic
- copper
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 244000166124 Eucalyptus globulus Species 0.000 title claims abstract description 5
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 4
- 238000002604 ultrasonography Methods 0.000 title claims abstract 3
- 239000003352 sequestering agent Substances 0.000 title abstract 2
- 229910052751 metal Inorganic materials 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 18
- 150000002739 metals Chemical class 0.000 claims abstract description 17
- 239000004094 surface-active agent Substances 0.000 claims abstract description 4
- 239000012141 concentrate Substances 0.000 claims abstract description 3
- 231100000331 toxic Toxicity 0.000 claims abstract 7
- 230000002588 toxic effect Effects 0.000 claims abstract 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract 6
- 241000196324 Embryophyta Species 0.000 claims abstract 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract 6
- 229910052802 copper Inorganic materials 0.000 claims abstract 6
- 239000010949 copper Substances 0.000 claims abstract 6
- 238000011084 recovery Methods 0.000 claims abstract 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract 3
- 229910052742 iron Inorganic materials 0.000 claims abstract 3
- 239000011133 lead Substances 0.000 claims abstract 3
- 229910052759 nickel Inorganic materials 0.000 claims abstract 3
- 238000001556 precipitation Methods 0.000 claims abstract 3
- 238000009713 electroplating Methods 0.000 claims abstract 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract 2
- 239000011707 mineral Substances 0.000 claims abstract 2
- 239000007787 solid Substances 0.000 claims abstract 2
- 239000002699 waste material Substances 0.000 claims description 5
- 239000010842 industrial wastewater Substances 0.000 claims description 4
- 230000003750 conditioning effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000011368 organic material Substances 0.000 claims description 3
- 238000005188 flotation Methods 0.000 claims 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 4
- 239000003153 chemical reaction reagent Substances 0.000 claims 3
- 229910000000 metal hydroxide Inorganic materials 0.000 claims 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims 2
- 235000011941 Tilia x europaea Nutrition 0.000 claims 2
- 239000004571 lime Substances 0.000 claims 2
- 150000004692 metal hydroxides Chemical class 0.000 claims 2
- 231100000252 nontoxic Toxicity 0.000 claims 2
- 230000003000 nontoxic effect Effects 0.000 claims 2
- 239000010802 sludge Substances 0.000 claims 2
- 239000002910 solid waste Substances 0.000 claims 2
- 231100000419 toxicity Toxicity 0.000 claims 2
- 230000001988 toxicity Effects 0.000 claims 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000011109 contamination Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 claims 1
- 238000002474 experimental method Methods 0.000 claims 1
- 230000005802 health problem Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- 238000005065 mining Methods 0.000 claims 1
- 239000010841 municipal wastewater Substances 0.000 claims 1
- 229910052755 nonmetal Inorganic materials 0.000 claims 1
- 150000002843 nonmetals Chemical class 0.000 claims 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 claims 1
- 239000010970 precious metal Substances 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 claims 1
- 239000004332 silver Substances 0.000 claims 1
- 229910052718 tin Inorganic materials 0.000 claims 1
- 239000011135 tin Substances 0.000 claims 1
- 239000002351 wastewater Substances 0.000 claims 1
- 239000002244 precipitate Substances 0.000 abstract description 5
- 239000004088 foaming agent Substances 0.000 abstract description 3
- 239000003643 water by type Substances 0.000 abstract description 3
- 239000008235 industrial water Substances 0.000 abstract 2
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 1
- 239000012154 double-distilled water Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
Definitions
- a tambo that contains 30 liters of industrial wastewater with a pH of approximately 1, is stirred for a period of time ranging from 3 to 5 minutes, then with a pump to extract liquids, 1000 milliliters are taken in a glass; as a step followed, 2 to 5 grams of analytical grade lime (CaO) is placed in said waters to bring the pH from 1 to 13 units; next, the 1000 milliliters are placed in the ultrasonic washing tank (No.2 of fig. 1), adding 300 to 400 milliliters of double-distilled water; as a second action, the pH reading is taken in common and current potentiometer and the temperature with the thermometer to the solution to float; Then, the ultrasonic washing tank and the Denver cell (No. 1 in fig.
- CaO analytical grade lime
- the filtrate that resulted from the first precipitate is placed in the aforementioned ultrasonic washing tank and connected again to the current line said tank and the Denver cell, then, 3 to 8 grams of eucalyptus cones are added which have been previously dehydrated, crushed and screened in mesh of a millimeter of opening; then, 200 to 300 ppm of a collector (heteropolar organic) are put in and again a conditioning time of one minute per drop is given with a 7 mm diameter rod; then they put 40 to 80 ppm of a sparkling giving a buoyancy time that goes from 5 to 10 minutes.
- a collector heteropolar organic
- the pH of the pulp is measured, filtered, the volume of the filtrate is determined, analyzed and the second precipitate is dried at 115 degrees Celsius and weighed for the previously analyzed metallurgical balance.
Abstract
The disclosed method relates to the process for the removal of heavy or toxic metals from residual, industrial or municipal waters and sludges to such an extent that the waters processed by floatation comply with the ecological standards. Tests were carried out in order to remove heavy metals in samples of residual industrial waters from electroplating plants. The methodology used is the ultrasound floatation in two steps, using in the first step a collector (which is generally heteropolar organic), a foaming agent (generally alcohols, surface active agents) which is a surfactant and, in the second step, eucalyptus cones (cup shaped receptacle) as sequestrants of copper or other elements which could not be removed in the first step because of their amphoteric character or because they redissolve by precipitation. Thus, due to the excellent recoveries obtained concerning copper, lead, nickel, iron and aluminium, residual industrial waters treated according to the disclosed process complied to the entire satisfaction with the mexican standards NOM-066-ECOL-1994. Furthermore, recovered solids are metal precipitates in a complex status, are inert and harmless; they can be deposited with no danger at any location or, if they have a good concentration of metals, they can be sent to a plant for melting mineral concentrates.
Description
Descripción Description
PROCESO PARA SEPARAR METALES PESADOS EN RESIDUOSPROCESS FOR SEPARATING HEAVY METALS IN WASTE
INDUSTRIALES EMPLEANDO FLOTACIÓN ULTRASÓNICA YINDUSTRIALS USING ULTRASONIC FLOATING AND
EUCALIPTO COMO SECUESTRANTEEUCALYPTUS AS A SEQUESTANT
PRIMER ETAPA:FIRST STAGE:
En primer lugar, un tambo que contiene 30 litros de aguas residuales industriales con pH de aproximadamente 1 , se agita por un periodo de tiempo que va de 3 a 5 minutos, seguidamente con una bomba para extraer líquidos se toman 1000 mililitros en un vaso; como paso seguido, se pone en dichas aguas de 2 a 5 gramos de cal grado analítico (CaO) para llevar el pH de 1 a 13 unidades; seguidamente, los 1000 mililitros se ponen en la cuba de lavado ultrasónico (No.2 de la fig.1 ), adicionando de 300 a 400 mililitros de agua bidestilada; como segunda acción, se toma la lectura del pH en potenciómetro común y corriente y la temperatura con el termómetro a la disolución por flotar; a continuación, se conecta a la corriente de 127 voltios, 60 ciclos la cuba de lavado ultrasónico y la celda Denver (No.1 de la fig.1 ); después, en la cuba se pone un colector de partículas de 400 a 600 ppm que consiste de un material orgánico heteropolar y se da un tiempo de acondicionamiento de un minuto por gota con varilla de 7 mm de diámetro del mismo; seguidamente, se pone un agente espumante que es un tensoactivo (se ponen de 80 a 150 ppm del espumante) y se abre la llave de admisión del aire en la celda Denver para flotar por un tiempo que va de 10 a 25 minutos, se debe tener la precaución de dejar la espuma con el concentrado en dicha cuba; como paso siguiente se toma la temperatura final que se debe haber incrementado de 10 a 15 grados centígrados durante la etapa; después, toda la pulpa proveniente de la primer etapa (precipitado y líquido) se filtra en papel filtro normal y con un sistema de vacío (No.3 de la fig.1 ). En la parte superior del filtro se tiene el
precipitado de metales complejos, el que se seca en estufa a 115 grados centígrados, se pesará y analizará para hacer el balance metalúrgico correspondiente. Al filtrado se le miden los mililitros y se toma una alícuota para su balance metalúrgico después de su análisis cuantitativo por espectrometría de absorción atómica.First, a tambo that contains 30 liters of industrial wastewater with a pH of approximately 1, is stirred for a period of time ranging from 3 to 5 minutes, then with a pump to extract liquids, 1000 milliliters are taken in a glass; as a step followed, 2 to 5 grams of analytical grade lime (CaO) is placed in said waters to bring the pH from 1 to 13 units; next, the 1000 milliliters are placed in the ultrasonic washing tank (No.2 of fig. 1), adding 300 to 400 milliliters of double-distilled water; as a second action, the pH reading is taken in common and current potentiometer and the temperature with the thermometer to the solution to float; Then, the ultrasonic washing tank and the Denver cell (No. 1 in fig. 1) are connected to the 127 volt, 60-cycle current; then, in the tank a particle collector of 400 to 600 ppm is placed, consisting of a heteropolar organic material and a conditioning time of one minute per drop is given with a 7 mm diameter rod thereof; Next, a foaming agent that is a surfactant (80 to 150 ppm of the foaming agent) is put in and the air intake key in the Denver cell is opened to float for a time that goes from 10 to 25 minutes, it should be take care to leave the foam with the concentrate in said tank; as a next step, the final temperature is taken, which must have increased from 10 to 15 degrees Celsius during the stage; then, all the pulp from the first stage (precipitate and liquid) is filtered on normal filter paper and with a vacuum system (No.3 of fig. 1). In the upper part of the filter you have the precipitate of complex metals, which is dried in an oven at 115 degrees Celsius, will be weighed and analyzed to make the corresponding metallurgical balance. The filtrate is measured in milliliters and an aliquot is taken for its metallurgical balance after its quantitative analysis by atomic absorption spectrometry.
SEGUNDA ETAPA:SECOND STAGE:
El filtrado que resultó del primer precipitado, se pone en la mencionada cuba de lavado ultrasónico y se conecta nuevamente a la línea de corriente dicha cuba y la celda Denver, enseguida, se agregan de 3 a 8 gramos de conos de eucalipto los que han sido previamente deshidratados, triturados y cribados en malla de un milímetro de abertura; después, se ponen de 200 a 300 ppm de un colector (orgánico heteropolar) y nuevamente se da un tiempo de acondicionamiento de un minuto por gota con varilla de 7 mm de diámetro; seguidamente se ponen de 40 a 80 ppm de un espumante dando un tiempo de flotación que va de 5 a 10 minutos.The filtrate that resulted from the first precipitate is placed in the aforementioned ultrasonic washing tank and connected again to the current line said tank and the Denver cell, then, 3 to 8 grams of eucalyptus cones are added which have been previously dehydrated, crushed and screened in mesh of a millimeter of opening; then, 200 to 300 ppm of a collector (heteropolar organic) are put in and again a conditioning time of one minute per drop is given with a 7 mm diameter rod; then they put 40 to 80 ppm of a sparkling giving a buoyancy time that goes from 5 to 10 minutes.
Al final del proceso se mide el pH de la pulpa, se filtra, se determina el volumen del filtrado, se analiza y el segundo precipitado se seca a 115 grados centígrados y se pesa para el balance metalúrgico previamente analizado.
At the end of the process, the pH of the pulp is measured, filtered, the volume of the filtrate is determined, analyzed and the second precipitate is dried at 115 degrees Celsius and weighed for the previously analyzed metallurgical balance.
Claims
1.-Es un proceso de flotación ultrasónica para la remoción de metales pesados o tóxicos, de aguas y lodos residuales, industriales o municipales suficiente para que las aguas procesadas cumplan con la normativa ecológica.1.-It is an ultrasonic flotation process for the removal of heavy or toxic metals from waste, industrial or municipal water and sludge, sufficient for the processed water to comply with ecological regulations.
Se efectuaron pruebas de flotación ultrasónica en muestras de aguas residuales industriales de una planta de galvanoplastia. El proceso de flotación se llevó a cabo en dos etapas, empleando en la primera, un colector (generalmente es un orgánico heteropolar) y un espumante (es un tensoactivo), siendo ésta una flotación agotativa para eliminar al máximo el cobre, plomo, níquel, hierro y aluminio. En la segunda etapa, además de los reactivos anteriores, en dicha flotación se emplearon conos de eucalipto (deshidratados, triturados y tamizados en malla de 1 mm de diámetro) para que éstos, absorban físicamente al cobre cuyo hidróxido tiene la propiedad de redisolverse en un medio alcalino. De esta forma, se puede dar cumplimiento con lo estipulado en la norma mexicana NOM-066-ECOL-1994.Ultrasonic flotation tests were carried out on industrial wastewater samples from an electroplating plant. The flotation process was carried out in two stages, using in the first, a collector (generally a heteropolar organic) and a foamer (a surfactant), this being an exhaustive flotation to eliminate copper, lead, nickel as much as possible. , iron and aluminum. In the second stage, in addition to the previous reagents, eucalyptus cones (dehydrated, crushed and sieved into a 1 mm diameter mesh) were used in said flotation so that they physically absorb the copper whose hydroxide has the property of redissolving in a alkaline medium. In this way, compliance with the provisions of the Mexican standard NOM-066-ECOL-1994 can be achieved.
2. -Es un proceso muy eficiente, cuyas recuperaciones son superiores al 99.00% y a juzgar de los pocos reactivos empleados, bajas dosificaciones y a la sencillez de operación del equipo, es muy económico.2. -It is a very efficient process, whose recoveries are greater than 99.00% and judging from the few reagents used, low dosages and the simplicity of operation of the equipment, it is very economical.
3.-En la precipitación con cal, el mayor porcentaje de hidróxidos metálicos son complejos, inertes y no tóxicos aceptados por la EPA (Environmental Protection Agency). El resto de los metales (en este caso
el cobre), es una porción mínima que están absorbidos en el material orgánico. Dicho orgánico, sí tiene cierta toxicidad y por lo tanto, se debe depositar en un lugar de confinamiento.3.-In lime precipitation, the highest percentage of metal hydroxides are complex, inert and non-toxic accepted by the EPA (Environmental Protection Agency). The rest of the metals (in this case copper), is a minimal portion that is absorbed into the organic material. Said organic does have a certain toxicity and therefore, it must be deposited in a confinement place.
4. -Este proceso de flotación ultrasónica, es muy versátil, se pueden variar colectores, espumantes, tiempos de acondicionamiento, de flotación y se puede aplicar a aguas o lodos residuales industriales y municipales, aún estando en condiciones muy variadas dichos residuos. Asimismo, la remoción de metales tóxicos se puede hacer extensiva a muchos otros metales pesados y ligeros así como a no metales.4. -This ultrasonic flotation process is very versatile, collectors, foamers, conditioning and flotation times can be varied and can be applied to industrial and municipal wastewater or sludge, even though said waste is in very varied conditions. Likewise, the removal of toxic metals can be extended to many other heavy and light metals as well as non-metals.
5.-EI ultrasonido, ayuda a la flotación en una forma muy eficiente, generando armónicas que excitan a los metales en estado coloidal, incrementan la temperatura, la energía cinética y la velocidad de las reacciones.5.-Ultrasound helps flotation in a very efficient way, generating harmonics that excite metals in a colloidal state, increasing the temperature, kinetic energy and speed of reactions.
6.-Los hidróxidos metálicos, si son de buena ley (de buena concentración), se pueden enviar a una fundición de concentrados de minerales o bien si son de baja ley, se pueden purificar para incrementar la concentración de los metales, para su posterior fundición y obtención de ingresos económicos adicionales. Esto es, los metales tóxicos que están ocasionando problemas de salud, se pueden reutilizar. Asimismo, las aguas procesadas se pueden reciclar al sistema.6.-Metal hydroxides, if they are of good grade (of good concentration), can be sent to a mineral concentrate smelter or if they are of low grade, they can be purified to increase the concentration of the metals, for later foundry and obtaining additional economic income. That is, the toxic metals that are causing health problems can be reused. Likewise, processed water can be recycled into the system.
7. -Con el mencionado proceso, también se pueden limpiar de metales tóxicos, ríos, lagos, sistemas nucleares de refrigeración hidráulica, jales de plantas minerometalúrgicas y otros.
REIVINDICACIONES MODIFICADAS7. -With the aforementioned process, rivers, lakes, nuclear hydraulic cooling systems, tailings from mining-metallurgical plants and others can also be cleaned of toxic metals. MODIFIED CLAIMS
[recibidas por la oficina Internacional el 3 de Agosto de 1998 (03.08.98) ; reivindicaciones 1 -7 modificadas ; otras reivindicaciones no cambian 1 -7 (2 páginas )][received by the International office on August 3, 1998 (03.08.98) ; claims 1-7 modified; other claims do not change 1-7 (2 pages)]
Habiendo descrito suficientemente mi invención, considero como una novedad por lo tanto reclamo como mi exclusiva propiedad lo contenido en el siguiente procesoHaving sufficiently described my invention, I consider it to be a novelty and therefore I claim as my exclusive property what is contained in the following process.
5 1 -El proceso de separación de metales tóxicos pesados de residuos industriales o municipales, se puede aplicar lo mismo a líquidos que a sólidos En residuos sólidos de plantas minerometalúrgicas, se logró una recuperación de plata de 99 50% y lo mismo se espera de otros metales preciosos Lo anterior se obtuvo agregando una centrifugación con 10 ciclón Esto significa un ingreso económico adicional al empresario en lugar de estar contaminando5 1 -The process of separating heavy toxic metals from industrial or municipal waste can be applied to liquids as well as solids. In solid waste from mining and metallurgical plants, a silver recovery of 99 50% was achieved and the same is expected from other precious metals The above was obtained by adding a centrifuge with 10 cyclones This means additional economic income for the businessman instead of polluting
2. -Es un proceso muy eficiente cuyas recuperaciones son superiores al 99 00% y a juzgar de los pocos reactivos empleados bajas dosificaciones 15 y a la sencillez de operación del equipo, es muy económιco(cιncuenta centavos de dolar por 1000 litros de aguas residuales industriales procesadas)2. -It is a very efficient process whose recoveries are greater than 99 00% and judging from the few reagents used, low dosages 15 and the simplicity of operation of the equipment, it is very economical (fifty cents per 1000 liters of industrial wastewater processed )
3 -En la precipitación de metales pesados con cal, el mayor porcentaje de 20 hidróxidos metálicos son complejos, inertes y no tóxicos aceptados por la EPA(Envιronmental Protection Agency) El resto de los metales (en este caso el cobre 4 o 6 ppm) es una porción mínima que están absorbidos físicamente en el material orgánico Dicho orgánico, si tiene cierta toxicidad y por lo tanto se debe depositar en un lugar de confinamiento 25 4 -Los metales recuperados fueron plomo, níquel, estaño, hierro y aluminio, pero, dicho proceso se puede aplicar a otros metales
3 -In the precipitation of heavy metals with lime, the highest percentage of 20 metal hydroxides are complex, inert and non-toxic accepted by the EPA (Envιronmental Protection Agency). The rest of the metals (in this case copper 4 or 6 ppm) It is a minimum portion that is physically absorbed in the organic material Said organic, if it has a certain toxicity and therefore must be deposited in a place of confinement 25 4 -The metals recovered were lead, nickel, tin, iron and aluminum, but, This process can be applied to other metals
5. -Habiéndose aplicado el multicitado proceso a varios tipos de residuos, se presume que el mismo, podrá resolver problemas de contaminación por metales tóxicos a nivel mundial.5. -Having applied the multi-cited process to various types of waste, it is presumed that it will be able to solve problems of contamination by toxic metals worldwide.
5 6. -En virtud de que las experimentaciones se hacen en volúmenes de aguas residuales relativamente grandes(uno o dos litros), con los parámetros encontrados, se puede escalar directamente a plantas industriales.5 6. -Because the experiments are carried out in relatively large volumes of wastewater (one or two liters), with the parameters found, it can be scaled directly to industrial plants.
l o 7. -La eficiencia del proceso, permite al industrial el reciclaje del agua, la conservación de los mantos acuíferos y la limpieza de metales de lagos, ríos, mares y de varios tipos de residuos sólidos.
l o 7. -The efficiency of the process allows the industrialist to recycle water, conserve aquifers and clean metals from lakes, rivers, seas and various types of solid waste.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MX9701255A MX9701255A (en) | 1997-02-19 | 1997-02-19 | Process to separate heavy metals in industrial residues, employing ultrasonic floatation and eucalyptus as sequester. |
| MX971255 | 1997-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998037025A1 true WO1998037025A1 (en) | 1998-08-27 |
Family
ID=19744958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/MX1998/000006 WO1998037025A1 (en) | 1997-02-19 | 1998-02-19 | Process for separating heavy metals from industrial residues by using a ultrasound floatation and eucalyptus as sequestering agent |
Country Status (2)
| Country | Link |
|---|---|
| MX (1) | MX9701255A (en) |
| WO (1) | WO1998037025A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2530041C1 (en) * | 2013-04-17 | 2014-10-10 | Дмитрий Валерьевич Кленовский | Method of purifying industrial waste water |
| CN112239286A (en) * | 2020-08-27 | 2021-01-19 | 中国恩菲工程技术有限公司 | Copper ion modified water treatment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1591695A (en) * | 1978-05-18 | 1981-06-24 | Indalex Ltd | Process for the removal of metal ions from aqueous solution |
| US4362629A (en) * | 1980-10-08 | 1982-12-07 | Murata Manufacturing Co., Ltd. | Method for processing solution including heavy metal |
| US4755270A (en) * | 1987-04-17 | 1988-07-05 | Joseph Aliotta | Method of processing solutions |
-
1997
- 1997-02-19 MX MX9701255A patent/MX9701255A/en unknown
-
1998
- 1998-02-19 WO PCT/MX1998/000006 patent/WO1998037025A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1591695A (en) * | 1978-05-18 | 1981-06-24 | Indalex Ltd | Process for the removal of metal ions from aqueous solution |
| US4362629A (en) * | 1980-10-08 | 1982-12-07 | Murata Manufacturing Co., Ltd. | Method for processing solution including heavy metal |
| US4755270A (en) * | 1987-04-17 | 1988-07-05 | Joseph Aliotta | Method of processing solutions |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2530041C1 (en) * | 2013-04-17 | 2014-10-10 | Дмитрий Валерьевич Кленовский | Method of purifying industrial waste water |
| CN112239286A (en) * | 2020-08-27 | 2021-01-19 | 中国恩菲工程技术有限公司 | Copper ion modified water treatment method |
| CN112239286B (en) * | 2020-08-27 | 2022-07-12 | 中国恩菲工程技术有限公司 | Copper ion modified water treatment method |
Also Published As
| Publication number | Publication date |
|---|---|
| MX9701255A (en) | 1998-02-28 |
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