비만아 부모의 돌봄 경험: q 방법론

An integrated process for removal and recovery of Cr(VI) from electroplating wastewater by ion exchange and reduction–precipitation based on a silica-supported pyridine resin

Effect of soil pH on the transport, fractionation, and oxidation of chromium(III).

Biomass as a resource is present in large quantities and offers environmental benefits from sequestration of carbon to bioenergy production. Production of renewable and sustainable biofuel (bioethanol) from biomass is gaining overwhelming interest globally. Biofuels are important and beneficial from environmental and economic points of view. The gasohol, ethanol blended gasoline, utilization for the transportation sector significantly reduces greenhouse gas (GHG) emissions as well as consumption of fossil fuels. Bioethanol produced from renewable biomass especially lignocellulosic biomass (LCB) provides opportunities for a sustainable, cleaner, environmentally safe, carbon-neutral fuel, and green alternatives for fossil fuel. Although LCB is present in the massive amounts on planet earth, it is not utilized properly for bioethanol production due to many hurdles in the bioconversion process like pretreatment, high cost of enzymes, mixed sugar conversion, fermentation etc. Great efforts have been devoted in technological improvement in the bioconversion process including biotechnological and metabolic engineering fields. This review focuses on the current status, technological advances, and new interventions in the bioconversion process of LCB into bioethanol with special focus on pre-treatment methods, fermentation approaches, and detoxification processes.

Ethanol from lignocellulosic biomass: An in-depth analysis of pre-treatment methods, fermentation approaches and detoxification processes

Sustainability research in the leather industry: A critical review of progress and opportunities for future research

Screening and production of a potential extracellular fungal laccase from Penicillium chrysogenum: Media optimization by response surface methodology (RSM) and central composite rotatable design (CCRD).

Cleaner production of basic chromium sulfate – with a review of sustainable green production options

Glycerin is produced by aqueous hydrolysis of tallow fat under high pressure and temperature in the absence of catalysts in a countercurrent extractor. A mathematical model describing the material ...

Aqueous hydrolysis of tallow for the production of glycerin: Model development and study on parametric sensitivity

In order to ensure safe and efficient operation of unit processes, foremost requirement is accurate measurement of process variables, with which quality can be monitored and controlled. Understanding the necessity of online monitoring of process temperature in tanning/dyeing process, the article is focused on wireless measurement of physical parameters involved in wet processing of hides/ skins and monitoring through digital computer for further analysis. It's a challenging task to measure and communicate the process information from a closed rotating drum. Wireless communication is proposed because of its enhanced security, superfast operating speed, and increased mobility. The physical parameters which are predominant in tanning process are temperature, pH, conductivity etc. of the process fluid. It is necessary to carryout dyeing at 65 °C for producing raw to wet blue process. As a first attempt, wireless module for temperature measurement has been developed. The module includes signal transmitter and receiver section. In the transmitter section, the temperature which is measured by an integrated sensor is converted into frequency signal and imposed on a radio frequency signal (career signal) and get transmitted in air. On the other side, receiver section receives the radio frequency signal and converts that into electrical signals to interface with the digital computer for online monitoring. The module is able to receive and control temperature of tanning drum within a distance of 100 meters. Real time experiments on the fabricated model show interesting results for commercialization. Copyright © 2015 IFSA Publishing, S. L.

T. Narayani

Papers

Screening and production of a potential extracellular fungal laccase from Penicillium chrysogenum: Media optimization by response surface methodology (RSM) and central composite rotatable design (CCRD).

Cleaner production of basic chromium sulfate – with a review of sustainable green production options

Aqueous hydrolysis of tallow for the production of glycerin: Model development and study on parametric sensitivity

Online Monitoring of Temperature Using Wireless Module in a Rotating Drum-Applicable to Leather Industries

Characterization for Cleaner and Sustainable Production of Glycerol from Tallow Under Aqueous Media at High Pressure and Temperature