The high concentration of nitrogen (N) compounds in wastewater was found to be creating a reason eutrophication, effect the biodiversity aquatic ecosystems and human health. aim this study is reduce harmful N forms from by biological transforming (BNT) bacteria investigate fluctuation ammonium oxidizing (AOB), nitrite (NOB), pathogenic during process, so compost representative. A sample municip...

Pesticides are usually applied simultaneously or serially for groundnut (Arachis hypogaea L.) crop protection. This type of pesticide application often leads to a combined contamination of pesticides and their residues in the soil. Pesticides used in groundnut cultivation – monocrotophos and chlorpyrifos, singly and in combination with mancozeb and carbendazim, respectively – were tested for th...

Abstract Samples of municipal waste water was taken and subjected to biological nitrogen transformation (BNT) ammonification nitrification, denitrification processes in order remove the excesses level harmful forms improve physio-chemical properties wastewater. Results revealed that BNT is efficient removing all Nitrogen from water, especially end process, nitrite reduced about 96% nitrate 75%....

The function of bacteria in the production of ammonia from the protein substances in soil is well known. How these proteins are acted upon, whether it is a hydrolytic process brought about by enzymatic action, whether an oxidative one, or whether a more complex chemical reaction, is yet an unsettled question. In order to ascertain, if possible, by controlling influencing factors as much as cond...

The use of riverine dissolved organic matter by the heterotrophic bacteria associated with a culture of the cyanobacterium Microcystis aeruginosa and release of simple nitrogen compounds were studied in an experimental series. Bacteria reduced the bulk of dissolved organic nitrogen (DON) by half, but when associated with M. aeruginosa, DON was excreted and its concentration rose by 13%. During ...

We hypothesized that differences in microbial and plant N demand in balsam poplar and white spruce stands would control in situ net N transformation and retention following N additions. Throughout the study, N fertilizer (NH4NO3) was added in three increments during the growing season, giving an annual N addition of 100 kg ha 1 yr . In balsam poplar, fertilization induced a large ( 285%) increa...