The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Mathematical modelling of the salt movement process under filtration salt transfer considering infiltration process in unsaturated-non-saturated layered soil has been carried out. The solution of this problem was received with a finite difference method. As a result of program implementation of the problem, numerical experiments have been performed and an analysis of the results has been done.
Contamination of soil and ground water by Petroleum hydrocarbons is a serious and wide spread environmental problem. The United State Environmental Protection Agency (U.S EPA) has proposed various technological approaches for treating soil contaminated by petroleum hydrocarbons. Among them, bioremediation is a promising technology used to remediate oil contaminated soil that involves indigenous oil...
Filter media is the most pivotal element of artificial soil filtration system and directly impact the reduction of contaminants in runoff. Four typical filtration materials including sand soil, boiler slag, furnace cinder and ceramsite are selected and studied in laboratory scale in Beijing. The experiment is carried by two stages. One is selection of filtration media. Firstly, different materials'...
Laboratory experiments were employed to investigate the influencing factors of BTEX volatilization. Characteristic of BTEX compounds was critical factor of volatilization; the higher saturated vapor pressure, the greater volatilizing speed. Type and structure of underlying materials determined the volatilization kinetics mode, the influence of channel blocking and adsorption of soils was stronger...
Soil solution sampler is a kind of equipment for soil solution sampling in fieldwork, it can be used for water saturated zone sampling, also it can be used for solution sampling in vadose zone. The well developed equipment offered an important instrument for monitoring on soil solution componential variation and repeated soil solution sampling for laboratory and experimental ground in many research...
In this paper, an undisturbed soil-column experiment and its mathematical model are investigated, and an inverse problem of determining the unknown source/sink parameter and adsorption coefficient simultaneously is considered with the additional breakthrough data. By applying an optimal perturbation algorithm, jiont inversions for the source/sink term and the adsorption coefficient are successfully...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.