Manure Solids Content Effect on Odor Control by Aeration: Lab and Field Tests

2008 ◽  
Author(s):  
Jun Zhu ◽  
Zhijian Zhang ◽  
Curtis Miller
Keyword(s):  
Field Tests ◽  
Odor Control ◽  
Solids Content

DDT and Heptachlor as Black-fly Larvicides in Clear and Turbid Water

1962 ◽  
Vol 94 (8) ◽  
pp. 875-880 ◽  
Author(s):  
F. J. H. Fredeen
Keyword(s):  
Suspended Solids ◽  
Field Tests ◽  
Turbid Water ◽  
Irrigation Canals ◽  
Clear Water ◽  
Black Fly ◽  
Inorganic Particles ◽  
Solids Content ◽  
The Relationship ◽  
Made In

Field tests of several formulations of DDT and heptachlor as black-fly larvicides were made in 1953 and 1954 in irrigation canals in Alberta. The objectives of these tests were 1: to investigate further the relationship between larvicide effectiveness and the suspended solids content of the water, and 2: to investigate the use of formulations containing either emulsifiers or finely-divided inorganic particles which might improve larvicide effectiveness in clear-water streams.

BIOCHEMICAL COMPOSITION OF CAULIFLOWER IN IRRIGATED AGRICULTURE

1970 ◽  
pp. 62-65
Author(s):  
Е. G. Gadzhimustapaeva
Keyword(s):  
Chemical Composition ◽  
Field Tests ◽  
Food Product ◽  
Soluble Solids ◽  
Irrigated Agriculture ◽  
World Collection ◽  
Economically Valuable Traits ◽  
Plot Area ◽  
Solids Content ◽  
Methodological Guidelines

Cauliflower is a food product highly regarded for its nutritional, taste and especially dietary properties. The studies noted that it is chemical composition depends on the growing region and on the meteorological conditions of the growing season. It were studied 36 samples of cauliflower from a new set of the VIR world collection: from Russia – 4, the Netherlands – 18, Japan – 4, 2 from Sweden and India, and one by one from Germany, Denmark, Poland, Italy, Bangladesh, Canada. Chemical analysis was implemented at the VIR Institute of Biochemistry and Molecular Biology (St. Petersburg). In the Dagestan experimental station in 2009-2011 a small-size plot experiments were laid to determine chemical indicators on a wider assortment of cauliflower – Brassica cauliflower Lizg. during the summer-autumn cultivation period. Seeds were sown in the ridges on June 15 - 20, seedlings were planted in the field on July 25-30. The registration plot area is 8.4 m2. “Ariel” variety was taken as the standard. To determine the chemical composition the samples were collected during the period when the plants reached 50-75% of the plant heads availability. Agricultural techniques of cauliflower cultivation is common for the zone of cultivation of cabbage varieties. Trial establishment and field tests were carried out in accordance with the VIR methodological guidelines; statistical data processing according to B.A.Dospekhov. Varieties and hybrids of cauliflower with a chemical composition high content: protein, sum of sugars, monosaccharides, saccharose, malic acid and soluble solids content were isolated. From the studied varieties and hybrids of cauliflower were identified plants according to a complex of economically valuable traits and productivity. These are the samples Divita F1 – 3.48 kg / m2, Minamonte F1 – 3.27, Gregor – 3.21, Casper F1 – 2.94, Lukra – 2.94, Décora F1 – 2.73, Pindus – 2, 70, Frebo F1 – 2.49 (Netherlands) and Aristo – 2.88 (Sweden), Ariel – 2.13 kg / m2.

Effect of ink and paperboard characteristics on flexographic print quality based on print density

TAPPI Journal ◽  
2011 ◽  
Vol 10 (9) ◽  
pp. 7-13
Author(s):  
KHODADAD MALMIRCHEGINI ◽  
FARSHAD SARKHOSH RAHMANI
Keyword(s):  
Water Absorption ◽  
Significant Influence ◽  
Particle Diameter ◽  
Print Quality ◽  
Printing Technology ◽  
Plastic Films ◽  
Printing Inks ◽  
Packaging Industry ◽  
Solids Content ◽  
Density Results

Flexography is an evolving printing technology that is suitable for printing on coated and uncoated paperboard and board, nonporous substrates including metalized and paperboard foils, and plastic films used especially in the packaging industry. This study evaluated the effect of paperboard and ink characteristics on flexographic print density in paperboard. Three commercial paperboards from different companies were prepared: brown kraft from Thailand, white kraft from Spain, and test liner from Iran. Four samples of process print inks from Iran were used in this investigation. Paperboard properties, such as roughness and water absorption, and ink characteristics, including solids content, PH and particle diameter, were measured. The inks were printed on paperboards using a roll no.15 applicator with a blade metering device, and the print densities were measured. Results showed that solids content, pH, and particle diameter of printing inks influenced print density, while the roughness and water absorption of the three types of paperboard had no significant influence on print density. Results also illustrated that two levels of ink viscosity (25–30 and 50–55 mPa·s) were insignificant to print density.

Managing total reduced sulfur emissions at a Canadian kraft pulp mill

TAPPI Journal ◽  
2016 ◽  
Vol 15 (4) ◽  
pp. 265-272 ◽  
Author(s):  
ROHAN BANDEKAR ◽  
JIM FREDERICK ◽  
JAROSLAV STAVIK
Keyword(s):  
Direct Contact ◽  
Black Liquor ◽  
Pulp Mill ◽  
Packed Bed ◽  
Average Value ◽  
Emission Limit ◽  
Total Reduced Sulfur ◽  
Reduced Sulfur ◽  
Air Ingress ◽  
Solids Content

This study addresses the challenges a dissolving-grade pulp mill in Canada faced in 2014 in meeting its total reduced sulfur (TRS) gas emission limit. These emissions from the recovery boiler exit are controlled by passing the boiler exit gas through a TRS scrubber system. The mill employs a cyclonic direct contact evaporator to concentrate black liquor to firing solids content. The off-gases from the direct contact evaporator flow to the effluent gas control system that consists of a venturi scrubber, a packed bed scrubber, and a heat recovery unit. Emissions of TRS greater than the regulated limit of 15 ppm were observed for a 4-month period in 2014. The level of emissions measured during this period was significantly higher than about 12 ppm, the expected average value based on historic experience. The problem persisted from mid-June 2014 until the annual mill shutdown in October 2014. The main TRS components detected and the performance of the Teller scrubber in capturing them are examined. Other potential causes for these emissions are identified, including mechanical problems such as broken packing in the TRS packed bed scrubber, broken baffle plates in the scrubber, and cyclone evaporator leaks causing air ingress. Repairs were carried out during the mill shutdown, which eliminated the TRS emissions problem.

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