Concrete wash water solidification products and methods

a technology of concrete wash and solidification products, applied in the direction of chemistry apparatus and processes, other chemical processes, separation processes, etc., can solve problems such as possible sources of ground water contamination, and achieve the effect of reducing or eliminating the expulsion of used or dirty rinse water into the environmen

Inactive Publication Date: 2014-11-06
MIX MFG
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  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Effectively reduces and eliminates the expulsion of wastewater into the environment by converting it into a solid form that can be disposed of safely, preventing groundwater contamination and facilitating environmentally friendly waste management.

Problems solved by technology

Construction sites that utilize cementitious products such as concrete and mortar have long been known as a possible source of ground water contamination if pollution prevention practices are not properly and regularly performed.

Method used

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  • Concrete wash water solidification products and methods
  • Concrete wash water solidification products and methods

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Embodiment Construction

[0018]The present disclosure provides products, systems and methods for disposing of cementitious residue and rinse water by converting liquid to a solid or semi-solid material. The solid material can then be disposed by conventional means, such as in a landfill. This invention provides a straightforward and practical system, that when implemented as designed, eliminates or reduces the expulsion of used or dirty rinse water into the environment.

[0019]The invention utilizes a super absorbent polymer (SAP) composition. When combined with water or other aqueous material, the SAP composition absorbs the water and the result is a gelatinous compound that is sufficiently solid that it can be disposed of as a conventional solid material. An additive may be present in the SAP composition to further entrap materials such as heavy metals from the cementitious water. The invention also includes a UV-stabilizer that inhibits the reversion of the gelatinous compound back to liquid. The UV-stabil...

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Abstract

A method for solidifying cementitious wastewater by combining the wastewater with a super absorbent polymer composition that includes a UV-stabilizer to form a mixture and disposing of the mixture as solid construction waste. The UV-stabilizer may be a stabilizing additive in the super absorbent polymer composition that inhibits the reversion from a solid or semi-solid mixture back to a liquid. In some embodiments, the method includes placing the mixture in UV-light non-transmissive packaging. After placing the mixture in the UV-light non-transmissive packaging, the package is closed and can be permanently sealed. The sealed package with solidified material therein can then be disposed as solid construction waste. The super absorbent polymer composition can include zeolite or other molecular sieves.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is a continuation application of U.S. patent application Ser. No. 13 / 325,645 filed Dec. 14, 2011, now allowed, which claims the benefit of U.S. Provisional application No. 61 / 423,252 filed Dec. 15, 2010 entitled “Concrete Wash Water Solidification Products and Methods”, the entire disclosures of which are incorporated herein.FIELD OF THE INVENTION[0002]This invention generally relates to products and processes for reducing and even eliminating rinse water waste from processes that utilize cementitious products such as concrete, mortar, grout, and the like. The invention is directed to combining the wastewater with a super absorbent polymer material, and disposing of the mixture as solid waste.BACKGROUND OF THE INVENTION[0003]Construction sites that utilize cementitious products such as concrete and mortar have long been known as a possible source of ground water contamination if pollution prevention practices are not prope...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): B01J20/26C02F11/00
CPCB01J20/267C02F11/008B01D15/00B01J20/18B01J20/261B01J20/28004B01J2220/46B01J2220/68C02F1/281C02F1/285C02F1/288C02F2101/20C02F2103/12
InventorFENELON, TERRANCE P.VAUGHN, THOMAS
OwnerMIX MFG