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The use of halotolerant phosphate solubilizing bacteria as inoculants to convert insoluble phosphorus of salt-affected soils to an accessible form is a promising strategy to improve the phosphorus ingestion of plants in salt-affected agriculture. A total of four aerobic isolates with biggest clear halos on the 10% NaCl NBRIP medium plate containing tricalcium phosphate were isolated from the rhizospheric soils of native plants growing on the wall of Dagong Ancinet Brine Well, located in Sichuan of China. And these four isolates were classified to the same strain, named QW10-11, and closely related to Bacillus megatherium var. phosphaticum DSM 3228 and B. megaterium ATCC 14581 according to their phenotype and 16S rRNA. However, the Molecular evolutionary evidences of 16S-23S rRNA ISR further suggested that QW10-11, DSM 3228 and ATCC 14581 have respectively fall into the different sub-divisions in intra specific phylogeny. Strain QW10-11 has significantly better ability of tricalcium phosphate solubilization than that of lecithin solubilization. When it grows under pH 4.8-8.0, 24-33°C and 5-10% NaCl, it can exhibit the higher values of solubilized tricalcium phosphate between 59.3 and 71.4 μg ml. Furthermore, its tricalcium phosphate solubilizing activity was associated with the release of organic acids. Taken together, our results indicted that QW10-11 from the rhizospheric soils of halobiot of Dagong Ancinet Brine Well is attractive as efficient phosphate solubilizing candidates in the salt-affected agriculture. [ABSTRACT FROM AUTHOR]

[Display omitted] • In-situ synthesis/purification integration (ISSPI) strategy was adopted for NH 4 + and PO 4 3- removal. • The strategy was achieved based on constructing Mg-doped tricalcium aluminate (Mg-C 3 A). • Mg-C 3 A exhibited excellent capacities for NH 4 + (43.0 mg·g−1) and PO 4 3- (20.2 mg·g−1). • The hydration properties of Mg-C 3 A played vital roles in the ions removal/recovery. • ISSPI strategy using Mg-C 3 A was compelling for authentic wastewater treatment. Simultaneous capture of ammonium (NH 4 +-N) and phosphate (PO 4 3−-P) in digested piggery wastewater is of great urgency yet remains a challenge. Recently, the in-situ synthesis/purification integration (ISSPI) strategy, with the essence of converting contaminations to high value-added products, has aroused great enthusiasm in the environmental remediation realm. In the present work, we employed ISSPI method for simultaneous elimination and recovery of NH 4 + and PO 4 3- from digested piggery wastewater based on the construction of a novel material system, i.e. , Mg-doped tricalcium aluminate (Mg-C 3 A), which coupled the features of cement-based material tricalcium aluminate (Ca 3 Al 2 O 6 , C 3 A) and Mg dopants. The released metal cations (Ca2+, Mg2+, and Al(OH) 4 −) of Mg-C 3 A were expected to act as precipitation agents to capture NH 4 + and PO 4 3− via the formation of Ca(NH 4) 2 (HPO 4) 2, MgHPO 4 ·3H 2 O or AlPO 4 ; OH− established an alkaline environment for the enhancement of NH 4 + removal via neutralization; Mg2+ played a major role in the recovery of NH 4 + and PO 4 3−, with the formation of valuable struvite as fertilizer. Benefited by these functions, Mg-C 3 A exhibited superior removal capacity for NH 4 + (43.0 mg·g−1) and PO 4 3− (20.2 mg·g−1). More importantly, the ISSPI method using Mg-C 3 A was prospective to be applied for authentic effluent treatment as demonstrated by response surface methodology (RSM), with the concentration of both ions down to the discharge standard of livestock and poultry breeding, China (80 mg·L−1 for NH 4 +; 8 mg·L−1 for PO 4 3−). This research provided an alternative and promising approach for the simultaneous removal and recovery of NH 4 + and PO 4 3− from digested piggery effluent, shedding light on environmental remediation. [ABSTRACT FROM AUTHOR]