recycling newsprint in agriculture

crop trials in alabama show that a mixture of cellulose from msw and broiler litter from the poultry industry can increase cotton yields - just one example of potential benefits to the nation's farms. cellulose materials that comprise 30 to 40 percent of the municipal waste stream have a valuable potential for improving soil properties an..

new initiatives in modacrylics for fr furnishings

continuing progress in the development and application of modacrylic fibres for flame-retardant end-uses is reported by waxman international, the european distributers of kanecaron modacrylic. in recent tests conducted by fibre suppliers waxman international, excellent results are reported, to crib 5, with constructions of cotton warp, ka..

eec trade deficit at all-time high

the poor textile business cycle, both at world level and community level, as well as the drop of world prices for all fibres except cotton, had an impact on our trade in fibres in 1990. while our total fibre imports experienced a setback in 1990 $minus$ 17.5 in value terms and $minus$ 3.5 in volume terms, our total exports also decreased;..

analysis of low molecular weight constituents of polypropylene and other polymeric materials using on-line sfe-sfc

additives and oligomers from polymers were quantitatively extracted and separated using on-line sfe and capillary sfc conditions were found which extracted the additives selectively and separated them from the co-extracted oliogomers. (author abstract) 26 refs

propagation of mixed polarization vlf (f $less than equivalent to$ 5 khz) radio waves in the antarctic earth-ionosphere waveguide

during 1986, a series of special vlf transmissions at approximately 3 khz and approximately 5 khz were made from the crossed dipole antenna at siple station, antarctica, which simulated transmissions from a single horizontal dipole at a number of different orientations. the subionospheric signals thus excited were recorded at four antarct..

new fracturing techniques reduce tight gas sand completion problems

new fracturing stimmulation technology contributed to solving problems in completing tight gas sands in the carthage cotton valley field in texas. these technologies included improved fluid systems, computer-controlled proppant placement, multiple isotope radioactive logs, mechanical properties logs, and innovative casing design drilling ..

on-line thermogravimetry/gas chromatography/mass spectrometry

an on-line thermogravimetry/gas chromatography/mass spectrometry (tg/gc/ms) system has been constructed through additions to and appropriate modifications of commercially available instruments. the system employed a du pont 951 thermogravimetric analyzer coupled to a hewlett-packard 5890 gas chromatograph/5970 mass selective detector syst..

synthesis and characterization of iminodiacetate cellulosic sorbent and its application in metal ion extraction

iminodiacetate cellulosic chelating sorbent, derived from cotton fabric, was synthesized in a two-step reaction sequence. the ph dependence of the metal ion extraction for cd(ii), co(ii), cu(ii), pb(ii), and ni(ii) was studied. under optimum conditions, the average sorptive capacity of the sorbent was found to be 0.38 mmol metal ion/sorbe..

emission rates of organics from vegetation in california's central valley

rates of emission of speciated hydrocarbons have been determined for more than 30 of the most dominant (based on acreage) agricultural and natural plant types found in california's central valley. these measurements employed flow-through teflon chambers, sample collection on solid adsorbent and thermal desorption gas chromatography (gc) a..

degradation of cotton fabric by electro-generated oxygen: polarization behaviour of the pt anode

catalytic damage observed during normal hydrogen peroxide bleaching of cotton fabric can be duplicated in experiments in which a cotton fabric, loosely wrapped about a platinum anode, comes in contact with electro-generated oxygen. polarization of the anode up to $plus$ 4000 mv(sse) in an alkaline environment results in the formation of p..