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Sorbente de composite potente para eliminar contaminantes del agua

Resumen

Tipo:
Oferta Tecnológica
Referencia:
TOSK20190111002
Publicado:
18/01/2019
Caducidad:
19/01/2020
Resumen:
Un instituto de investigación científica eslovaco ha desarrollado un sorbente de composite muy eficaz para la eliminación de contaminantes en el agua y obtención de agua potable. Estos contaminantes son principalmente metales pesados, como arsénico, antimonio, cromo, cadmio, plomo, etc. El sorbente de composite también puede emplearse en el tratamiento de aguas residuales, incluyendo aguas residuales de las industrias química y electrónica, y se prepara mediante carbonización controlada de fibra de celulosa que se produce anualmente en billones de toneladas en la naturaleza. Las fibras de carbono nanoporosas obtenidas se modifican con hidróxidos de hierro atrapados en los poros y en la superficie de las fibras. La estructura molecular original del sorbente facilita la obtención de un efecto sinérgico de carbono y óxido de hierro, y ofrece no solo una alta eficiencia sino también un alto índice de captura de contaminantes. La cooperación se establecerá en el marco de un acuerdo de licencia o cooperación en materia de investigación.

Details

Tittle:
Powerful composite sorbent for the removal of contaminants from water
Summary:
Established Slovak scientific research institute has developed a highly effective composite sorbent for the removal of contaminants from water for drinking purposes. These are mainly heavy metals such as arsenic, antimony, chromium, cadmium, lead and others. The composite sorbent can be also used in wastewater treatment, including wastewater from chemical and electronic industry. The cooperation types they would like to cooperate via are license agreement or research cooperation agreement.
Description:
Contamination of water is a global problem. Among the most frequently occurring contaminants in water are heavy metals such as arsenic, antimony, cadmium, mercury, chromium ions, nickel, lead and others, as well as waste products from various industrial productions. The proposed technology represents highly effective and inexpensive method of removal of such contaminants.

The developed composite sorbent is prepared by controlled carbonization of fibrous cellulose raw materials which are annually produced in billions of tons by nature (resulting in a significant reduction of production costs of the sorbent). The resulting nanoporous carbon fibers are modified with hydrated iron oxides entrapped in the pores and on the surface of the fibers. The original molecular structure of the sorbent facilitates the achievement of a synergy effect of carbon and iron oxide, and provides not only a high efficiency but also a high rate of contaminant capture. The physical structure of the composite sorbent reduces the resistance to water flow, and its efficiency in removing contaminants is in the area of practical applicability independent from water pH.

Main physical properties of nanoporous carbon fibers are:
· Length: 20 microns to several cm
· Diameter: 10 to 50 microns
· BET (Brunauer, Emmett and Teller) surface area: several m2/g to almost 2000 m2/g

The proposed sorbent can be used in the treatment of water for drinking purposes, as well as in the treatment of wastewater from chemical and electronic industry. An extensive use of the composite sorbent is assumed in areas struggling with the contamination of drinking water, such as several countries in Asia. These are often areas where the input material poses a waste and by that an important ecological load on the environment.

The developed composite sorbent is significantly more effective than the top commercially available sorbent, often several times. In laboratory tests residual concentrations of heavy metals were achieved that comply with limits for drinking water.

The research institute is looking for an industrial partner for licensing the technology or to engage in contract research. The preferred cooperation types are license agreement and research cooperation agreement.
Advantages and Innovations:
- high removal efficiency of heavy metals: arsenic 97.8%, antimony 97.6%, chromium 96.4%, cadmium 88.9%, lead >98.9%,

- low production price achieved by using input raw materials from plant wastes,

- up to 163% more effective than other commercial products, depending on the type of contaminant.
Stage of Development:
Prototype available for demonstration
IPs:
Patents granted
CommeR Statunts Regarding IPR Status:
Granted Slovak patent (No. 288563)

Partner sought

Type and Role of Partner Sought:
Type of partner sought: The institutes are seeking an industrial partner for licensing the technology or to engage in contract research.

Area of activity of the partner:
· for licensing - no preference
· for contract research - no preference

Client

Type and Size of Client:
R&D Institution
Already Engaged in Trans-National Cooperation:
Si
Languages Spoken:
English
Slovak

Keywords

Technology Keywords:
10004004 Agua potable
03004010 Special chemicals, intermediates
10002007 Tecnología / ingeniería medioambiental
10004001 Tratamiento de aguas industriales