Stabilization of clayey soil is commonly used to enhance unfavorable engineering properties. The effects silica additives on improvement have been considered recently, and documented research studies the characteristics problematic clays stabilized by are interesting for many researchers. Alternative waste disposal strategies that would be both economically beneficial environmentally friendly i...

Neutralisation of Acid Rock Drainage (ARD) by adding an alkaline reagent produces sludges generally dominated by amorphous ferrihydrite, often with high levels of adsorbed heavy metals. The effect of neutralisation method and reagent on the long-term chemical stability of these treatment sludges was investigated experimentally using a relatively oxidised synthetic ARD (containing Fe[~70% Fe], A...

Two field experiments (Spring, 1974 and 1975) were conducted on Myakka fine sand to determine the effect of lime and nitrogen source on the development of Fusarium wilt of cucumber and watermelon. The same site, with the same experimental design, was used for each experiment. In both experiments, gross yields were increased and wilt development decreased by raising the soil pH with hydrated lim...

Particle emissions into the atmosphere can cause extensive damage to environment and human health. To improve efficiency in collection of submicronic particles, new filtration media appeared on market due textile technologies equipment, such as filter developed with polytetrafluoroethylene (PTFE) membranes; however, these are more expensive. A coating technique called precoating is a economical...

In the western United States, sugar beet processing for sugar recovery generates a lime-based waste product (∼250,000 Mg yr) that has little liming value in the region's calcareous soils. This area has recently experienced an increase in dairy production, with dairies using copper (Cu)-based hoof baths to prevent hoof diseases. A concern exists regarding soil Cu accumulation because spent hoof ...

We conducted two experiments to determine the usefulness of a chlorophyll content meter (CCM) for the measurement of foliar chlorophyll concentration in sugar maple (Acer saccharum Marsh.) in the fall color period. In Experiment 1, four sugar maple trees were visually assigned to each of four fall foliage color categories in October 1998. On four dates in the fall of 1999, leaves were taken fro...