Polyphenols removal in winery wastewater using an AnSBR

The aim of this work was to study along of different cycles the biomass adaptation process to total polyphenols (TPP) concentrations in an Anaerobic Sequencing Batch Reactor (AnSBR) and to evaluate the degradation of TPP and COD in winery wastewater (WWW). A lab-scale AnSBR was operated at 30º C with intermittent stirring and was fed with WWW with a COD of 182.25 g/l and a TPP concentration of 489 mg/l. The AnSBR was operated in four cycles, after the first cycle the biomass adaptation was taken for granted since reductions in the TPP went from 56% in C1 to around 95% in the consecutive cycles. COD reduction reached the 95% to 99% for all the four cycles.Postprint (published version

Adsorption studies on the removal of hexavalent chromium from aqueous solution using a low cost fertilizer industry waste material

Low cost fertilizer industry waste material called carbon slurry, produced in generators of fuel oil based industrial generators was converted into an effective and efficient adsorbent for the removal of hexavalent chromium (VI) from aqueous solutions.The waste was chemically treated, activated, characterized and used for the adsorption of chromium. The work involves batch experiments to investigate the effect of contact time, pH, temperature, concentration and adsorbent dose on the extent of adsorption by carbon slurry. The maximum adsorption was found at 70 min., 2.0 pH, 4.0 g/L dose, 303 K temperature. Maximum adsorption capacity (15.24 mg/g) of Cr(VI) on carbon slurry was observed at 100 mg/L initial Cr(VI ) concentration. Langmuir and Freundlich adsorption isotherm models were applied to analyze adsorption data, and both were found to be applicable to this adsorption system, in terms of relatively high regression values. Thermodynamic parameters showed that the adsorption of Cr(VI) onto carbon slurry was feasible, spontaneous and exothermic under studied conditions. Kinetics of adsorption was found to follow pseudo second order rate equation. Column studies have been carried out to compare these with the batch capacities. The recovery of Cr(VI) and chemical regeneration of the spent column have also been tried. In all, the results indicated that the adsorbent used in this work proved to be effective material for the treatment of chromium bearing aqueous solutions

Isolation and identification of lignin degrading bacteria residing in mandeepkhol cave of Chhattisgarh: A RAPD Study

Lignin is biopolymer synthesized by plants and it consists upto 30% dry mass weight of any woody tissue. It is also known as second most abundant source of carbon after cellulose but still has a major problem, i.e. very tough to degrade. Thus, in present work authors were studied about the degradation of lignin by bacteria. The paper reports isolation, screening and identification of lignin degrading bacteria from collected samples. The bacterial strains were isolated from a cave that is located in the Chhattisgarh state of India in the mountain range of Salewara which have a temperature range between 26-28C. A total of 32 bacterial isolates were studied and their RAPD analysis was performed and it was observed that Brevundimonas diminuta, Bacillus thuringiensis and Bacillus cereus were isolated in lignin- rich media which showed evidence of high lignin degradation

Polyphenols removal in winery wastewater using an AnSBR

The aim of this work was to study along of different cycles the biomass adaptation process to total polyphenols (TPP) concentrations in an Anaerobic Sequencing Batch Reactor (AnSBR) and to evaluate the degradation of TPP and COD in winery wastewater (WWW). A lab-scale AnSBR was operated at 30º C with intermittent stirring and was fed with WWW with a COD of 182.25 g/l and a TPP concentration of 489 mg/l. The AnSBR was operated in four cycles, after the first cycle the biomass adaptation was taken for granted since reductions in the TPP went from 56% in C1 to around 95% in the consecutive cycles. COD reduction reached the 95% to 99% for all the four cycles

Comparative study of muscle strengthening exercises for treatment of chronic low backache

Background: Low back pain is a major cause of musculoskeletal disability worldwide. Objectives: To study the outcomes of different muscle strengthening exercises in treatment of low back pain Materials and Methods: One hundred and twenty patients in the age group of 20-40 years with mechanical low back pain were randomly divided intotwo groups and instructed to perform two different types of exercises for three months (Mckenzie exercise andSwiss ball exercise). Patients were assessed by Visual Analogue Scale (VAS), Modified Schober Test (MST) for extension and Oswestry Disability Index (ODI), based on pain intensity levels, range of motion, functional disability before starting the exercise programmes and after 3 months of intervention. Results were analysed using Students T Test. Results: There was no significant difference in the pre-treatment session between the two groups. VAS and ODI Values were significantly lower in post-treatment sessions as compared to pre-treatment values in both Groups but MST Values in post-treatment sessions in Group practicing Mckenzie exercise showed significant decreases. Significant decrease in VAS, MST and ODI Valueswere found in subjects practising McKenzie exercise when comparison was done between the two groups after 3 months of treatment. Conclusion: McKenzie exercise and Swissball exercise in patients with mechanical Low back pain reduce pain intensity, increaserange of movementand decrease functional disability. McKenzie exercise seems to have higher efficacy as compared to Swissball exercise

Polyphenols removal in winery wastewater using an AnSBR

The aim of this work was to study along of different cycles the biomass adaptation process to total polyphenols (TPP) concentrations in an Anaerobic Sequencing Batch Reactor (AnSBR) and to evaluate the degradation of TPP and COD in winery wastewater (WWW). A lab-scale AnSBR was operated at 30º C with intermittent stirring and was fed with WWW with a COD of 182.25 g/l and a TPP concentration of 489 mg/l. The AnSBR was operated in four cycles, after the first cycle the biomass adaptation was taken for granted since reductions in the TPP went from 56% in C1 to around 95% in the consecutive cycles. COD reduction reached the 95% to 99% for all the four cycles