Online ISSN: 2515-8260

Keywords : wastewater

Enrichment of Bio-components Release with Effective Methane Generation from Prefragmented Paper Industry Wastewater using Homogenizer Method

Nasim Hasan; Dr. P. Sreehari; Dr. D. JenilaRani; N Saranya; Gourav Kalra

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 2, Pages 3335-3345

Biodegradability is the major concern for methane generation because complex biocomponents
as key factors for speeding hydrolysis steps. In this study, methane gas
generation potential of paper industry wastewater (PWW) was studied using homogenizer as
mechanical prefragmentation method. Initially, homogenizer was performed by varying
prefragmentation time and rpm. At optimum prefragmentation time (50 min) and rpm
(20000), homogenizer method obtained 3912 mg/L of bio-components extricate during PWW
sample prefragmentation study. Also, maximal of lysification rate (21 %) and suspended
solids (SPD) reduction (18 %) were obtained at 15748 kJ/kg TS homogenizer specific energy.
Then, the prefragmented and control samples were subjected to methane assay. Homogenizer
mediated PWW fragmented sample got higher methane generation (141 mL/g VS) than
control sample (38 mL/g VS). Thus, homogenizer mediated prefragmentation method helps 
to lessen the wastewater generation by enriching methane production with significant
extricate of bio-components at commercial scale.


Oteniyazov Rashid Idirisovich; Xujakulov Toshtemir Abdixafizovich; Seytniyazov Davronbek Bayramovich; Atamuratov Aydos Turdimuratovich

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 7, Pages 673-680

There will be studied modeling the water resources contamination level in open nodes. The mathematical formulation of the problem of calculating unsteady flows in an arbitrary system of river channels based on one-dimensional equations of the Saint- Venant type is given in this work. Wastewater in the basin is controlled by six indicators: BOD, petroleum products, suspended solids, total phosphorus and nitrogen, as well as iron. Four cleaning methods are considered: mechanical, chemical, biological and biochemical. In the calculation process, each of these methods of wastewater treatment can be compared with the rest.

Fluidized Bed Gasifier Design

Ms. Gauri Singhal

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 6, Pages 1056-1061

A “fluidized bed reactor” (FBR) is a kind of reactor system that may be utilized to conduct a number of chemical processes with multiple phases. A fluid is pumped thru a solid concentrated material in the reactor (generally a catalyst probably formed as small spheres) at sufficiently high speeds to suspend substance and allow it to function as a fluid. The paper discusses aboutfluidized bed in waste water treatment.Application of fluidized bed reactor in treatment of waste such as municipal waste water in order to treat sewage, landfill leachate in order to remove COD, ammonia which affects environments and rendering waste along with proper analysis and results is also discussed. Importance of primary clarifiers and secondary clarifiers are presented in the paper.