Photograph used for a story in the Daily Oklahoman newspaper.

Bench-scale pilot plant studies were conducted to evaluate chemical coagulation and ion exchange for decontamination of 2724-W laundry wastewater. Chemical coagulation is accomplished at pH 11 to avoid complexant problems and assure good transuranic radionuclide removals. Clinoptilolite is used to remove cesium and strontium. Results of the pilot plant studies are summarized as follows: Decontamination factors of 70 (strontium) and more than 100 (cesium) were achieved by chemical coagulation and ion exchange. Decontamination factors exceeding 90 were measured for europium by coagulation with a combination of ferric chloride, magnesium chloride, and calcium chloride added to the wastewater at pH 11. Coagulation with these three agents in the wastewater at pH 11 was more effective for turbidity removal than coagulation with lime. Addition of up to 1.7 lb of clinoptilolite fines per 1000 gallons of wastewater during coagulation did not substantially increase strontium and cesium removal. Filtration without chemical coagulation reduced suspended solids by only 25%. About 70% of the suspended solids remaining in the filtered wastewater were removed in the zeolite column causing plugging which could not be easily dislodged by backwashing. Plugging of the ion exchange columns by previously clarified wastewater required short periods of limited backwashing to relieve …

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Gary Krug"

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Demonstrating a teletypewriter "talker" are Kerr students, from left, Mike Lee, Jeff Williams, Valarie Quisenberry and Kevin Ferris."

Photograph used for a story in the Daily Oklahoman newspaper.

Photograph used for a story in the Oklahoma Times newspaper. Caption: "The bridge on NW 10 just west of Council Road has opened after being closed for a year for reconstruction."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Pregnant mothers are taught this stretching exercise in a yoga class conducted by Julie Mysse."

Letter from Representative John Young to Eleanor Brown acknowledging her request for copies of H. R. 3321 and S. 247. He mentions that he has enclosed copies of both bills.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Significant progress toward the development of a solar energy storage system based on the norbornadiene-quadricyclene interconversion has been achieved during the past year. New sensitizers and catalysts have been discovered and conditions found where single cycles of the photosensitization step and the catalytic reversion step appear to be quantitative. Both sensitizers and catalysts have been successfully incorporated onto insoluble polymeric supports. The long term stability of these components is currently being tested using a recently constructed prototype device designed for multiple recycling experiments. Investigations are also underway on design modifications which will allow incorporation of the norbornadiene-quadricyclene system into currently available state-of-the-art solar collectors.

The emphasis of work during this past quarter has been on improvement of the performance of immobilized photosensitizers. Prolonged use of Polymer N in the recycling prototype has resulted in gradual deterioration of the behavior of this photosensitizer. Furthermore the opacity of the beads results in an inherent 20% loss in efficiency apparently through light reflection. In an attempt to improve the characteristics with respect to these points considerable effort was devoted in the synthetic grafting of sensitizer chromophores to glass surfaces. Some success has already been achieved, and the first successful silica-grafted photosensitizer is reported. Experience with the polystyrene grafted sensitizers, such as polymer N, has shown that details concerning the synthetic pathway (such as percent loading, types of site-site interactions, particle size and synthetic sequence) markedly influence the performance. Clearly, enhanced characteristics can be expected with systematic refinements. Preliminary results on both organic and inorganic systems are described.

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.

Onionskin paper carbon copy of letter from John J. Herrera to Frank M. Pinedo, dated March 15, 1977, refers to E & J Travel Bureau dba Arizona Bank Travel Service vs. League of United Latin American Citizens.

Memo from William Childress, President of LULAC Council 11041 in Washington D. C., directed to LULAC Supreme Council Members and dated March 15, 1977. The memo is regarding proposed 1977 Constitutional Amendments for League of United Latin American Citizens.

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Crews work leveling the ground in preparation for pouring concrete for the foundation of the new Oscar Rose Junior College administration building."

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John L. Hill, regarding a legal question submitted for clarification; Fingerprinting of juveniles.

Work on an existing multiple growth furnace has begun with the aim of achieving growth of 5, 2'' wide ribbons simultaneously at a rate of 3 in./min. The equipment and the initial experiments carried out are described. Also starting is a task aiming to bring the 5 ribbons under automatic control, equally using pre-existing equipment and designs. Furthermore, the effort to characterize the EFG (edge-defined film-fed growth) materials produced is increased and particular emphasis is placed on measuring and analyzing their solar cell performance. Data are presented on defect densities in various EFG grown ribbons. It is demonstrated that the diffusion length is larger under AM1 than under ''dark'' conditions, and results are shown on electrical inhomogeneities in the ribbon cells. Many of these results are interpreted in terms of defect-impurity interactions which are believed to be the main impediment to better solar cell performance at the present time. However, data are reported on an EFG solar cell of 12% AM1 efficiency, and on several 1'' x 4'' EFG cells of efficiencies between 9 and 11%. In the single ribbon resistance heated crystal growth station, a major effort is made to identify the sources of impurities introduced during growth by …

Research on polymer organic sensitizers and polymer inorganic sensitizers for the conversion of norbornadiene to quadricyclene for thermochemical storage of solar heat is described. Also, research on the catalysis of the conversion of quadricyclane to norbornadiene is described. Polymer-anchored cobalt(II) porphyrin catalysts, polymer-anchored palladium(II) phosphine catalysts, and triphenylcyclopropenyl nickel complexes as catalysts were studied, and results are discussed. (WHK)