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Phosphorus Testing Articles & Analysis
16 articles found
XRF analysis changes the economics: test cathode material in 3-10 seconds, identify cobalt, nickel, iron, manganese, and phosphorus, and route accordingly. ...
Answering Your Soil Nutrient Questions While soil sampling is a valuable practice at any time, it’s especially useful during periods of lower commodity prices. Testing data will provide the information you need to create a smart fertility plan. ...
ByGrowers
The samples, collected in North Estonia in 1997-1998, differed substantially in their content of (biodegradable) organic matter, sulphate, total nitrogen and phosphorus. The test battery was composed of 4 Toxkit microbiotests (Algaltoxkit F™, Protoxkit F™, Daphtoxkit F™ and Thamnotoxkit F™) and one bioassay with a higher plant. ...
However, the effluent obtained from the tests presented a phosphorus concentration higher than the one in the raw leachate. ...
Following new trends we applied oxygen uptake rate (OUR) tests as well as long-term tests (in two batch bioreactors systems) in order to assess the biodegradability of textile wastewater. ...
Physico–chemical treatment with aluminium salts is a common practice to remove total phosphorus (TP) from wastewaters. However, the use of alum can increase the residual aluminium concentration both in the effluent and biosolids. Chitosan, an alternative coagulant, does not allow for the removal of TP below the requirement level when lower than the soluble ...
A natural red soil and a lanthanum-modified soil (LMS) were tested to compare their phosphorus (P) adsorption capacities and their effectiveness in removing P from the water column and reducing P release from sediment. ...
With increasing water reuse applications and possible stringent regulations of phosphorus content in secondary and tertiary effluent discharge in Florida, USA, alternative technologies beyond conventional treatment processes require implementation to achieve low phosphorus (P) and nitrogen (N) concentrations. ...
In this study: (1) a novel sandwich structure fiber-based biofilm carrier was produced, which consisted of an inner core composed of polyacrylonitrile-based activated carbon fiber felt (PAN-ACFF) and an outer coat made of polyester reticular cloth with polypropylene fiber loops; (2) the novel carrier was filled in a step-feeding pilot-scale modified University of Cape Town process (MUCT) for ...
Algal blooms in eutrophic water bodies are controlled by inputs of phosphorus (P) as the growth-limiting nutrient. Runoff particulate P associated with soil from fields often predominates among P fractions. ...
A high concentration of phosphorus in wastewater may lead to excessive algae growth and de-oxygenation of the water. In this work, nanofiltration (NF) of phosphorus-rich solutions is studied in order to investigate its potential in removing and recycling phosphorus. ...
Using the relationship between soil test phosphorus (STP) in the five soils and the dissolved reactive phosphorus (DRP) released in surface runoff, a runoff dissolved phosphorus risk indicator (RDPRI) was developed to identify the STP level for Irish tillage soils above which there may be a potential threat to surface water ...
However, there were environmental concerns: (i) Early fall manure spreading significantly increased fall nitrate (NO3) levels in the manured plots (175 vs. 87 kg NO3–N ha–1); (ii) Following corn harvest, fall NO3 levels were fairly low and equivalent between treatments with the exception of three sites where manuring resulted in significantly higher NO3–N; and (iii) Soil tests ...
Water Treatment Residuals (WTR) can be a potential source for available phosphorus (P) and Al, but the influence of WTR rates on the dynamics of available P and Al and plant uptake in alkaline soils are not well documented. ...
Phosphorus from agricultural lands poses a problem in water resources. In 2003, more than 48% of soil samples submitted to the North Carolina Department of Agriculture and Consumer Services (NCDA&CS) soil testing laboratory tested very high in soil P (>120 mg dm–3 P). As soil test P increases, off-site P loss increases, through ...
Factors that contribute to high soil P in bermudagrass [Cynodon dactylon L. (Pers.)] pastures include continued use of broiler litter rich in P to meet forage N requirements and removal of hay in summer only. This study determined if harvesting annual ryegrass (Lolium multiflorum Lam.) in addition to bermudagrass would reduce surplus soil P, Cu, and Zn faster than bermudagrass alone after litter ...