Screening of Chelating Agents for Chemolysis

Verplaetse, H.; Verbeeck, Ronald; Minnaert, H.; Oosterlinck, Willem

doi:10.1159/000472614

Cited by 9 publications

(2 citation statements)

References 7 publications

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“…p values (Table 1). It agrees with the calculated behaviour of struvite in solution estimated by Verplaetse et al (1985Verplaetse et al ( ,1986, Snoeyink and Jenkins (1980) and Stumm and Morgan (1981). Further calculations involving data from this experiment yield an apparent pK.p = 12.76±0.56.…”

Section: Resultssupporting

confidence: 91%

“…This is a serious pathological condition. The calculated behaviour of struvite at varying pH values in solution has also been reported and expressed in various forms (Snoeyink and Jenkins (1980); Stumm and Morgan (1981); Verplaetse et al (1985Verplaetse et al ( ,1986). The aim of the work reported in this paper was to determine at what point in the lagoon system struvite precipitation was likely to occur, by experimentally measuring the solubility of struvite under conditions close to the wastewater in the lagoons.…”

Section: Introductionmentioning

confidence: 96%

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Struvite (MgNH4PO4·6H2O) Solubility and Its Application to a Piggery Effluent Problem

Webb¹,

Ho²

1992

Water Science and Technology

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Struvite (MgNH4PO4·6H2O) solution chemistry was studied in order to understand a struvite scaling problem which exists in the pipe network of a series of 4 effluent lagoons at a piggery. The conditional solubility constant (PS=SMG·SNH3−N·SPO4−P, equilibrium S values (M)) was determined over a range of pH values (6.8-8.5) and solution concentrations of Mg, NH3−N and PO4−P close to field conditions, and at a temperature of 30°C. A comparison of field and laboratory data indicates struvite precipitates from the second lagoon onwards. The solubility data obtained also indicate potential for precipitation as a method of nutrient removal from wastewaters.

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Section: Resultssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 96%