The use of pig slurry as organic fertilizer in intensive horticulture could be possible after hygienization to avoid contamination products. This research aimed evaluate a mixture tomato waste and rice husk biofilter media reduce NH3, N2O, CO2, CH4 losses from simple low-cost solution for by pH modification. experiment was made system laboratory scale biofilters connected jars filled with raw c...

To assess the chemical stability of sludges generated by neutralizing acid rock drainage (ARD) with alkaline reagents, synthetic ARD was treated with hydrated lime (batch and high-density sludge process), limestone, and two proprietary reagents (KB-1 and Bauxsol). The amorphous metal hydroxide sludge produced was leached using deionized water, U.S. EPA methods (toxicity characteristic leaching ...

TASK-2 (KCNK5 or K(2P)5.1) is a background K(+) channel that is opened by extracellular alkalinization and plays a role in renal bicarbonate reabsorption and central chemoreception. Here, we demonstrate that in addition to its regulation by extracellular protons (pH(o)) TASK-2 is gated open by intracellular alkalinization. The following pieces of evidence suggest that the gating process control...

Robule Lake, located in Eastern Serbia, near the city of Bor, is being influenced by waste materials from mining activities. For purification water contaminated with various metal ions (Fe, Cu, Zn, Mn, Cd, Ni, etc.), acid mine drainage (AMD) treatment methods such as: passive method, sequential neutralization, ion exchange, adsorption process based on low cost adsorbents, natural zeolits, elect...

The oxidation of elemental sulfur by Thiobacillus thiooxidans was studied at pH 2.3, 4.5, and 7.0 in the presence of different concentrations of various anions (sulfate, phosphate, chloride, nitrate, and fluoride) and cations (potassium, sodium, lithium, rubidium, and cesium). The results agree with the expected response of this acidophilic bacterium to charge neutralization of colloids by ions...

A pilot-scale plant consisting of an oxidation basin (OB), a neutralization basin (NB), a reaction basin (RB), and a settling basin (SB) was designed and built to conduct pilot-scale experiments. With this system, the effects of aeration and pH on ferrous oxidation and on precipitation of the oxidized products were studied systemically. The results of pilot-scale tests showed that aeration at 3...

The pH of wastewater needs to remain between 6 and 9 protect water organisms. Condensates from a gas condensing boiler have value about 3. An optimal way neutralize the acid condensate is use cheap material such as dolomite. old-style neutralization box (NB) was tested with standard faction However, it did not sufficiently condensate. Therefore, several tests were performed involving changes co...

Acid mine water refers to resulted from the oxidation of sulphide mineral a mining process and exposed water, it has high acid level which is indicated by low value pH that below 6. Therefore, must be treated so does not cause pollution in area around mine. In this research, treatment applied active method using jar test with neutralizer media powerbase. This research only calculated dosage nec...