نتایج جستجو برای: floatation
تعداد نتایج: 364 فیلتر نتایج به سال:
copper smelting slags are hard materials. therefore,to recover their copper by flotation method, grinding should be carried out to obtain optimal particle size. copper smelting slags in the bardeskan district, with work index of 16.24 kwh/st, were grinded for 65 minutes to reach an acceptable degree of freedom for the flotation tests, with particle size of 80%, smaller than 70 μm. with this gri...
Background: Gastrointestinal parasitism is considered one of the major health problems ruminants in developing and undeveloped countries world. Despite universal knowledge these parasites, little known about their prevalence distribution Northern Cyprus. This study aimed at microscopic metagenomic gastrointestinal parasites across Cyprus sheep farms. Methods: A total 200 faecal samples were ran...
ABSTRACT Cryptosporidium spp. are important enteropathogen protozoan parasites that infect humans and other animals throughout the world. Cryptosporidiosis in cattle industry leads to considerable economic losses due diarrhea, dehydration, growth retardation, weight loss, possibly death, however, data on occurrence ofCryptosporidiumspp. Colombia limited. Therefore, this study aimed investigate ...
Gastrointestinal parasitic infections are the most common and persistent caused by helminths protozoa mainly in developing countries like Nepal. The present study was conducted from September 2019 to June 2020 find out prevalence of gastrointestinal parasites among primary school children Bhaktapur District, A total 190 stool samples were collected examined microscopically sedimentation techniq...
Outcrop samples were collected from Dukku area for the purpose of subjecting them to palynological analysis in order determine relative age Gwandu Formation and palaeoenvironment deposition deposit. Field laboratory methods carried out obtain lithological sequence description outcrop. The obtained went through processes acid digestion with hydrochloric acid, hydrofluoric separation macerals by ...
Abstract River water was treated by continuous electrocoagulation (EC) for acetaminophen (AP), natural organic matter (NOM measured as UV254), and removal of elements. HRT at 40 min with 0.5 mg/L AP exhibited the best efficiency NOM (55.9%) (53.4%) removal. Except aluminium, other elements in river were removed completely. The EC sludge (floating settled) XRD spectrum showed peaks from reduced,...
An extruding machine for the production of floating fish feed was designed and fabricated. Performance evaluation fabricated done. The design hopper; shaft, barrel, screw die were done using standard equations. Effect extrusion parameters which are moisture content (20% 25%, 30%, 35%, 40%) size (2 mm, 4 6 8 mm 10 mm) speed (150 rpm; 200 rpm, 250 300 rpm 350 rpm) on expansion ratio, floatability...
Around one million metric ton of plastics is produced worldwide daily. Plastic contamination aggravated when the particles reach sizes between 5 mm and 1 μm, giving rise to microplastics, which are omnipresent in environment, especially agroecosystems. To appreciate magnitude this problem, review analyzes 177 scientific works focus on occurrence effects microplastics agricultural soils. Firstly...
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