Kinetics of methane production and biodegradation of linear alkylbenzene sulfonate from laundry wastewater
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ABSTRACT:
PROVIDER: PRJEB11200 | ENA |
REPOSITORIES: ENA
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Project description:The title molecular salt, C(6)H(16)N(+)·CH(3)SO(3) (-), has been determined at 150?K. Two diisopropyl-ammonium cations (dipH) and two anions form N-H?O hydrogen-bonded cyclic dimers lying around centers of symmetry. Only two of the three O atoms of the methane-sulfonate anion are involved in hydrogen bonding, resulting in slightly longer S-O bond lengths. The title structure represents an example of a sulfonate anion that is part of a hydrogen-bonding R(4) (4)(12) graph-set motif, which is well known for related dipH acetates. Additionally, the Raman and the IR spectroscopic data for the title compound are presented.
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Project description:Fluidized bed reactor treating commercial laundry wastewater Metagenome
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Project description:The title compound, C(8)H(8)N(2)O(7)S, an inter-mediate in the synthesis of N,N-bis-(2-hydroxy-ethyl)-3,5-dinitro-aniline, exists as a discrete mol-ecule; the nitro groups are twisted with respect to the aromatic system [dihedral angles = 17.0 (1) and 26.3 (1)°].
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Project description:The title compound, [Al(H(2)O)(6)](CH(3)SO(3))(3) (common name: aluminium methane-sulfonate hexa-hydrate), was crystallized from an aqueous solution prepared by the precipitation reaction of aluminium sulfate and barium methane-sulfonate. Its crystal structure is the first of the boron group methane-sulfonates to be determined. The characteristic building block is a centrosymmetric unit containing two hexa-aqua-aluminium cations that are connected to each other by two O atoms of the -SO(3) groups in an O-H?O?H-O sequence. Further O-H?O hydrogen bonding links these blocks in orthogonal directions - along [010] forming a double chain array, along [10-1] forming a layered arrangement of parallel chains and along [101] forming a three-dimensional network. As indicated by the O?O distances of 2.600?(3)-2.715?(3)?Å, the hydrogen bonds are from medium-strong to strong. A further structural feature is the arrangement of two and four methyl groups, respectively, establishing 'hydro-phobic islands' of different size, all positioned in a layer-like region perpendicular to [101]. The only other building block within this region is one of the -SO(3) groups giving a local connection between the hydro-philic structural regions on both sides of the 'hydro-phobic' one. Thermal analysis indicates that a stepwise dehydration process starts at about 413?K and proceeds via the respective penta- and dihydrate until the compound completely decomposes at about 688?K.
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Project description:Dynamics and response of microbial diversity to nutritional condition in denitrifying bioreactor treating laundry wastewater
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Project description:In the title compound, C8H9NO5S, the dihedral angle between the benzene ring and the nitro group is 5.86?(15)° and the C-C-O-S group adopts an anti conformation [torsion angle = -168.44?(15)°]. In the crystal, mol-ecules are linked by C-H?O hydrogen bonds, generating a three-dimensional network.
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Project description:In the crystal structure of the title compound, C(19)H(14)N(+)·CF(3)SO(3) (-), the cations are linked to each other by very weak C-H?? inter-actions, while the cations and anions are connected by N-H?O, C-H?O and S-O?? inter-actions. The acridine ring system and the phenyl ring are oriented at an angle of 80.1?(1)° with respect to each other. The mean planes of adjacent acridine units are either parallel or inclined at an angle of 35.6?(1)°. The trifluoro-methane-sulfonate anions are disordered over two positions; the site occupancy factors are 0.591?(8) and 0.409?(8).
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Project description:In the mol-ecule of the title compound, C(9)H(12)O(9)S(3), the two methanesulfonate groups re located one above and one below the ring plane. The C-O-S angle range is 119.3?(2)-121.1?(2)°. This conformation is different from that of the benzene analog 1,2,5-tris-(p-toluene-sulfonate), which is a three-legged 'table' with all fragments of the p-toluene-sulfonate on top of the benzene ring. In the crystal, the supra-molecular aggregation is completed by the presence of C-H?O hydrogen bonds.
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Project description:In the title compound, C(15)H(14)O(3)S, the dihedral angle between the two benzene rings is 59.3?(8)°. The crystal structure is stabilized by weak inter-molecular C-H?? inter-actions between the benzene rings and the central ethyl-ene bridge, and a weak non-classical C-H?O hydrogen bond occurs in the structure.
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Project description:In the crystal structure of the title compound, C(14)H(12)NS(+)·CF(3)SO(3) (-), N-H?O hydrogen bonds link cations and anions into ion pairs. Inversely oriented ion pairs form stacks through multidirectional ?-? inter-actions among the acridine units. The crystal structure features a network of C-H?O inter-actions among stacks and also long-range electrostatic inter-actions among ions. In the packing of the mol-ecules, the acridine units are nearly parallel in stacks or inclined at an angle of 33.07?(2)° in the four adjacent stacks with which they inter-act via weak C-H?O inter-actions. The methyl-sulfanyl group is twisted through an angle of 60.53?(2)° with respect to the acridine ring.
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