Award Data

The U.S. chemical industry accounts for over 200 million tons/year of hazardousliquid waste containing organic chemicals. These waste streams are difficult totreat using conventional technologies such as carbon adsorption and steamstripping. Membrane processes--particularly pervaporation--offer energy and costadvantages over conventional techniques. However, current pervaporationmembrane-module ...

N/A

N/A

N/A

No one questions the philosophy that it is better to avoid industrial pollutionrather than to attempt the clean up of an environmentally abused site.Unfortunately, we are slow to learn this lesson and hazardous wastes become moreexotic and continue to increase. Causing 21 of the 28 EPA superfund sites in theSilicon Valley (Witkowski and Menon 1991), the semiconductor industry was, andcontinues to ...

Industrial wastewater containing toxic waste compound and metal ions pose manyproblems of disposal. The most generally used method of removing metalcontaminants is lime treatment to precipitate metals as hydroxides. The metalis not normally recovered resulting in the need for sludge disposal. The costof sludge disposal plus fewer available disposal sites makes that methodincreasing less attract ...

A new laser protective material for protection from battlefield lasers is proposed. The material utilizes novel polarizing metal spheroid film (MSF) coatings which function as wavelenght-tuned polarizers in the spectral band from 400 nm to 2200 nm. Each MSF coating can be disigned to place the peak absorption at specific laser wavelengths in this band while maintaining normal transmission at lon ...

This project addresses the development of diode-laser-based continuous-emissionsmonitors (CEMs) to meet the emissions monitoring requirements imposed on a widerange of industries by Federal and state clean air regulations. The overridingobjective is the development of new, highly reliably instrumentation that hassubstantially lower long term operating and maintenance costs than existinginstrument ...

SOIL WASHING OR FLUSHING HAS BEEN SHOWN TO BE AN EFFECTIVE METHOD FOR REMOVING HEAVY METALS FROM METAL-CONTAMINATED SOILS AT SUPERFUND SITES. SANDY SOILS CAN OFTEN BE WASHED WITH WATER TO MOBILIZE METAL IONS IN AN AQUEOUS PHASE, BUT FOR CLAY SOILS OR SOILS WHICH CONTAIN INSOLUBLE METAL COMPOUNDS, E.G., LEAD SULFATE, OTHER ADDITIVES SUCH AS CHELATING AGENTS (EDTA) ARE USED TO EFFECT TRANSFER OF MET ...

MRC PROPOSES TO DEVELOP A SAFETY PERFORMANCE INDICATOR (PI) OF THE ELECTROMAGNETIC (EM) PROTECTION STATUS OF A NUCLEAR POWER PLANT (NPP). WE BELIEVE THAT SUCH A PI IS NEEDED BECAUSE: (1) EM ENVIRONMENTAL POLLUTION IS ON THE INCREASE,(2) ADDITIONAL EM THREATS MUST BE EVALUATED, AND (3) DISRUPTION OF NPP OPERATIONS BY EM EFFECTS CAN AND MUST BE AVOIDED. PREVIOUS STUDIES HAVE ADDRESSED THE ISSUE OF E ...