Reduction of Pollutants in Hardwood Pulp Mill Bleach Effluent

Sudarshan, K.; Maruthaiya, K.; Kotteswaran, P.; Murugan, A.

doi:10.14233/ajchem.2016.20043

Cited by 8 publications

(2 citation statements)

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“…2c). The decrease in the intensity of the band at 2531 cm −1 of both the composts represent a breakdown of the complex –SH groups of paper mill wastes (Sudarshan et al., 2016).…”

Section: Resultsmentioning

confidence: 99%

Assessment of qualitative enrichment of organic paper mill wastes through vermicomposting: humification factor and time of maturity

Ganguly

Chakraborty

2019

Heliyon

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The process of bioconversion of solid organic wastes through vermicomposting justifies the environmental message for sustainability such as reduce, recycle and reuse of wastes. In the present study, wastes derived from two different types of paper mill sludge (primary and secondary), was used for their bioconversion through the vermicomposting process using an indigenous species of earthworm ( Perionyx excavatus). The maturity and stability stage of vermicompost production was assessed using FT-IR, GC-MS and TG analyses. During vermicomposting, different biochemical functional groups present in the wastes have shown differential chemical alteration and turnover as revealed by FT-IR spectroscopy. This study has also confirmed the trend of biodegradation of complex substances like lignin, cellulose, proteins etc. and thereby demonstrates the extent of mineralization. TG spectral analysis had revealed a mass loss of 80% and 71% in vermicompost produced from primary and secondary sludge respectively. GC-MS studies have also shown the presence of several humic acids like octadecanoic acid, heptadecanoic acid etc. in the decomposing substances demonstrating as an indicator of the maturity of products. This was further confirmed by the decrease of humification index which focuses the combined action of both earthworms and microbes in the degradation of organic wastes. The present study has highlighted the role of an indigenous earthworm in converting specific industrial wastes especially by recording the point of maturation using humic acids an indicator of the quality of decomposing of wastes following several instrumental applications.

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“…2c). The decrease in the intensity of the band at 2531 cm −1 of both the composts represent a breakdown of the complex –SH groups of paper mill wastes (Sudarshan et al., 2016).…”

Section: Resultsmentioning

confidence: 99%

Assessment of qualitative enrichment of organic paper mill wastes through vermicomposting: humification factor and time of maturity

Ganguly

Chakraborty

2019

Heliyon

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“…Moreover, considering that PDADMAC is employed at approximatively neutral pH, only slight adjustments of this parameter may be needed during treatments. In detail, since the greater part of suspended and colloidal solids present in water is usually negatively charged [6], PDADMAC is extensively used as flocculant in water clarification treatments [7]. The flocculation processes carried out by PDADMAC are generally considered inexpensive, thanks to its relatively easy operation and the high quality of sludge produced [8].…”

Section: Introductionmentioning

confidence: 99%

Diallyldimethylammonium Chloride (DADMAC) in Water Treated with Poly-Diallyldimethylammonium Chloride (PDADMAC) by Reversed-Phase Ion-Pair Chromatography—Electrospray Ionization Mass Spectrometry

2023

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Poly-diallyldimethylammonium (PDADMAC) chloride is a flocculant agent extensively used in water clarification treatments. Commercial polyelectrolyte formulations often contain residual monomer (DADMAC), reaction by-products and other reactants as contaminants that could potentially affect human health. In the present study, we optimized an analytical method based on reversed-phase ion-pair chromatography coupled with mass spectrometry for quantifying ultra-trace levels of DADMAC, without preliminary treatments, in drinking water distributed by the Palermo aqueduct. The method was validated in terms of accuracy (recovery between 80 to 120%), precision (RSD < 10%), linearity range (from 0.5 to 15 µg/L), limit of quantification and limit of detection (LOQ 0.42 µg/L and LOD 0.12 µg/L). DADMAC was detected in all analysed water samples and the concentration ranged from 1.2 to 3.8 µg/L whit a mean value of 1.7 µg/L. To the best of our knowledge, this paper represents the first study concerning DADMAC concentration in water samples collected in Italy and, in this context, this paper can be considered very interesting when comparing future data on DADMAC monitoring in water. Moreover, this is one of a few cases where DADMAC was found in drinking water.

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Detoxification of Petroleum Hydrocarbon Contaminated Soil Through Vermicomposting and Its Impact on Gut Profile of Earthworm Eudrilus eugeniae

Veena¹,

Kathireswari²,

Preethee³

et al. 2023

Water Air Soil Pollut

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Reduction of Pollutants in Hardwood Pulp Mill Bleach Effluent

Cited by 8 publications

References 0 publications

Assessment of qualitative enrichment of organic paper mill wastes through vermicomposting: humification factor and time of maturity

Assessment of qualitative enrichment of organic paper mill wastes through vermicomposting: humification factor and time of maturity

Diallyldimethylammonium Chloride (DADMAC) in Water Treated with Poly-Diallyldimethylammonium Chloride (PDADMAC) by Reversed-Phase Ion-Pair Chromatography—Electrospray Ionization Mass Spectrometry

Detoxification of Petroleum Hydrocarbon Contaminated Soil Through Vermicomposting and Its Impact on Gut Profile of Earthworm Eudrilus eugeniae

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