نتایج جستجو برای: chemical characteristics of water
تعداد نتایج: 21260804 فیلتر نتایج به سال:
Montmorillonite is the main bentonite forming mineral which has special characteristics such as suspension, swelling and colloidal properties. It can absorb water to become larger in volume. Good absorbents are extensively used in industry eithersimply dried or after chemical activation. The chiefconsumer of these clays is the oil refinering industry whichuses them to purify fractionation pr...
background: the presence of lead in natural waters has become an important issue around the world. lead has been identified as a highly toxic metal that can cause severe environmental and public health problems and its decontamination is of utmost importance. the aim of this work was to evaluate the adsorption of lead (pb(ii)) on waste tea leaves as a cheap purification method. methods: in this...
considering the water scarcity in iran and the importance of environmental protection, it is approperiate to investigate the environmental management of siah-rud river. it is a small river being utilized as discharge channel by factories located in the vicinity of the river. the physico-chemical characteristics of river water at 10 different sampling locations 'along with coefficient of ae...
kochia scoparia is a salt resistant plant that can be used in producing forage in the areas with salt water and soil resources. one of the problems which produce the forage plants in these areas decreases the function and quality of the forage in irrigation condition with salt water. therefore, using the chemical fertilizers can be considered as a useful solution. this study was conducted to ev...
Coconut water (Cococus Nucifera. L) is the clear liquid present inside a coconut endosperm. This subjected to microbial contamination and degrades while exposed ambient air. In general, thermal methods are mostly used in preservation of foods. this study, was collected from 8-10 months old harvested coconut. Microwave power levels 540 W, 720 900 Whavebeen treat with different exposure times. Th...
Borage (Borago officinalis L.) is a valuable medicinal plant and its production to meet the needs of the pharmaceutical industry has a high value. The objectives of this work were to evaluate water quality and different fertilizer systems on some physiological and biochemical characteristics of borage. The experiment was conducted as a split-plot arrangement based on compelet block design with ...
Researchers are now discovering that naturally occurring environmental nanoparticles can play a key role in important chemical characteristics and the overall quality of natural and engineered waters. The detection of nanoparticles in virtually all water domains, including the oceans, surface waters, groundwater, atmospheric water, and even treated drinking water, demonstrates a distribution ne...
abstract pomegranate (punica granatum l.) is an important iranian-native fruit, and many of its varieties are cultivated. this research was conducted to evaluate some of the major physical and chemical properties of six pomegranate cultivars at ripening stage in a completely randomized design with 4 replications. the investigated traits were fruit fresh weight, fruit volume, peel thickness, pee...
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