This study was conducted to assay the effects of methanol foliar application (0, 10, 20 and 30% v/v) and bed cover (control, white and black covers) on yield and some physiological traits of marigold as a factorial based on RCBD. The results revealed the significant interaction effects of bed cover and methanol foliar application on chlorophyll a content and plant height. The highest plant heig...

Optimization of process conditions for the removal Remazol Black B was investigated using response surface methodology (Box–Behnken design). The biodecolorization dye studied biochar produced from waste biomass Caulerpa scalpelliformis (marine seaweeds). reactions were optimized by varying sorbent dosage, solution pH, temperature, and initial concentration. results indicated that efficiency 80....

Anthocyanins are natural dye substances that provide attractive colors from red to blue. However, large quantities of Anthocyanins have been found in wastewater from soaked black beans, resulting in environmental pollution. The utilization of theses wastewaters would therefore be an effective way of reducing environmental pollution, and the water could be used to dye silk fabric, displaying...

Biosorption of dyes by lignocelluloses may be an effective method for removing dyes from textile effluents. However, the resulting dyeadsorbed lignocellulosic materials may constitute another pollution problem. An integrated method can solve this problem. Here, various lignocelluloses were tested for their Astrazon Black and Astrazon Blue dyes removal activities. The dye adsorbed after 30 min c...

This paper utilizes a statistical approach, the response surface optimization methodology, to determine the optimum conditions for the Acid Black 172 dye removal efficiency from aqueous solution by electrocoagulation. The experimental parameters investigated were initial pH: 4-10; initial dye concentration: 0-600 mg/L; applied current: 0.5-3.5 A and reaction time: 3-15 min. These parameters wer...

T-PM-Pol USE OF THE DYE HOECHST 33258 IN A MODIFICATION OF THE BROMODEOXYURIDINE PHOTOLYSIS TECHNIQUE FOR THE ANALYSIS OF DNA REPAIR. B. S. Rosenstein* and R. B. Setlow (Intr. by M. Simon), Biology Dept., Brookhaven Nation¶l Laboratory, Upton, N.Y. 11973. A modification of the BrdU photolysis technique used in the measurement of the repair of damage in DNA has been developed employing the bisbe...

When uninjured cells of Valonia are placed in methylene blue dissolved in sea water it is found, after 1 to 3 hours, that at pH 5.5 practically no dye penetrates, while at pH 9.5 more enters the vacuole. As the cells become injured more dye enters at pH 5.5, as well as at pH 9.5. No dye in reduced form is found in the sap of uninjured cells exposed from 1 to 3 hours to methylene blue in sea wat...

A comparison of the photoefficiency of Ni(II) and NiS incorporated into zeolite P towards photodecolorization of Eriochrome Black T dye solution was investigated in a photocatalytic reactor using UV lamp as a light source. The effect of various experimental variables on the decolorization performance of the process was evaluated by examining catalyst dosage, temperature, initial dye concentrati...

393 Paraphenylenediamine (PPD) is a blue-black aniline dye commonly used in hair dyes. It is also used in textile and fur dyes, wool dye, dark cosmetics, temporary tattoo hennas, photo baths, and photocopy and printing ink. Paraphenylenediamine, which accelerates the absorption of hair dye and henna tattoos by the skin and helps the formation of the black color, is an allergen. Paraphenylenedia...