The aim of this study was to achieve aerobic granulation utilizing fermented municipal wastewater under low pH, and alkalinity conditions. Stable granulation was achieved after a 166-day start-up period. Due to low influent strength, supplemental carbon addition, in the form of sucrose, was added...
Therefore, ALDs produce usually neutral water with very high bicarbonate alkalinity. High aluminum concentrations may result in a gradual decrease of performance because of precipitation of aluminum hydroxide. In aerobic wetlands, dissolved metals are oxidized and precipitated as metal hydroxides or oxides...
The pH dependence and the pH limit of AOB is usually not relevant for conventional wastewater treatment as most municipal wastewaters contain sufficient alkalinity to allow complete ammonia oxidation (Tchobanoglous et al., 2003). However, the pH dependence of AOB becomes important in wastewaters wit...
The term "non-acidic fruits" might be a bit of a misnomer: Low-acid foods will still fall on the "acidic" side of the pH scale, but they'll be closer to that neutral 7. The pH value of 4.6 divides low- from high-acid foods. The greater the pH number, the less acidic the frui...
Aragonite is stable at temperatures associated with water systems and does not adhere to surfaces in a scaling manner like calcite does. The aragonite crystals are also a natural pH balancer. The goal of this system is to prevent the formation of calcite deposits. Thus, this system was develope...
Furthermore, any stimulation of native SOC mineralisation by the addition of alkalinity through the biochars is expected to be minimal in the alkaline Vertisol (pH58.1) used in the present study. The pH of biochars used ranged from 6.9 to 10.3, and the CaCO3 equivalence ranged from 29.2 to ...
Organic matter (OM) loading drives benthic metabolism and controls nitrogen (N), phosphorus (P), and carbon (C) cycling in coastal sediments. To better und
pH. Glycerols can oxidize or thermally degrade to form diols or acids that can contribute to the instability of biodiesel. These degradation by-products may catalyze the polymerization of unsaturated fatty acids causing the formation of gels. In addition to this, high alkalinity is linked to the...
Reduction of pH in waters with high total alkalinity and low total hardness. Progr. Fish-Culturist, 42: 183-185.Mandal, B. K. and C. E. Boyd. 1980. The reduction of pH in water of high total alkalinity and low total hardness. Progressive Fish-Culturist 42:183-185....
Journal AWWA - Pitting Corrosion of Copper in Waters with High pH and Low Alkalinitydoi:AWWA JAW66132工业用铜管的局部腐蚀或点蚀\n对于一些房主来说,家庭管道是个问题.\n极端攻击可能会导致针孔泄漏\n水损害,霉菌生长和昂贵的维修.这个\n本研究的目的是更好地定义特定的\n支持点蚀的水质条件.\n中试规模...