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.
The principle and treatment process of Kaidi Cyclic Active Sludge Sequence System (KDCAS) reactor were introduced; the effects of nitrogen and phosphorus removal of the reactor with different water loads were analyzed. The results indicated that with their own structural characteristics, KDCAS reactor could gain a expected results of nitrogen and phosphorus removal completely, as long as process matrix...
Compared with the effect of total phosphorus removal by modified peat and ammonium nitrogen removal by modified zeolite respectively, ammonium nitrogen and total phosphorus removal by modified peat associated with modified zeolite from micro-polluted scenic-water were studied in this paper. The surface structures of natural material, modified material and the modified material after adsorption saturated...
This study has investigated the effect of humus soil activated sludge on the nitrogen and phosphorus removal. The results from experiments indicate that humus soil SBR (HS-SBR) process did not have a better effect on the COD removal compared it with SBR process. They had about 89% removal efficiency on average. HS-SBR process could enhance the removal of nutrient salt, especially TP. The removal efficiency...
A 4-month data set was used to investigate historical changes between the number of the Cyanobacteria and concentrations of total nitrogen (TN), total phosphorus (TP), TN:TP, chemical oxygen dawdling (COD), NO3, pH and Chl-a in a shallow temperate zone lake (Guishui Lake, Beijing, China). The aim was to evaluate changes in the risk of Cyanobacteria blooms, which have occurred several times in the...
Water quality of Darning Lake, located at the central district of Jinan City of China, can be obviously affected by the external nutrients loading. There are about 8.07times107 kg seriously contaminated loosing sediment with 1.30times105 kg phosphorus in the lake sediment. The buffering effect of the sedimentary phosphorus plays a critical role in the lake water quality. Under natural conditions,...
The remains of zooplankton subfossil and sediment characteristics were examined from a macrophyte dominated shallow lake Wuliangsuhai in Inner Mongolia, China, in order to study past limnological changes. The lake began to switch to eutrophication gradually in the middle 1980s, creating a Transitional Sediment Layer (TSL, about 17 cm depth) that can be visually used to separate sediments derived from...
The internal Qinhuai River in Nanjing City of China was selected for the research on the influence of incity river sediment dredging to endogenous release by the experiment of simulating the endogenous releases at different depths of dredging so as to analyze the correlation between the forms and the release amount of phosphorus in the sediment and the change of the phosphorus forms before and after...
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.