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Search Term: chemical & biochemical engineering

Technologies


Copper-based photovoltaic nanocrystals for thin-film solar cells
IntroductionIncreased environmental awareness promoted many countries to adopt renewable energy as the new power source. Solar energy tapped through photovoltaic (PV) technology has become the widely accepted source of power generation, as it operation generates no pollution, and no greenhouse gas emissions. Improving efficiency while reducing cost...
Stimuli-responsive polyglyoxylates as biodegradable polymers
Market for Biodegradable PolymersMost synthetic polymers are produced from petrochemicals and are not biodegradable. Conventional polymers such as polypropylene and polyethylene persist in the environment for many years, even after their disposal. The potential of biodegradable polymers to overcome such limitations has long been recognized. Under p...
Ultrasonic Interface Detector
Background:Ultrasonic level sensors are commonly used in industry. These sensors generally provide low-cost and accurate level measurements with certain important features and benefits. They are well suited for simple monitoring of liquid and solid levels. However, ultrasonic sensors actually measure the time it takes a signal to travel out and bac...
A Retrofit Wireless Sensor System for Industrial Plants
Background:In safety-critical industrial facilities such as oil and gas refineries, chemical processing and power generation plants, the requirements on the reliability of critical sensors are extremely high. Such sensors are typically wired and are used for emergency shutdown decision-making, process control or monitoring. Since these sensors usua...
Biological Nutrient Removal by Modified MBR System
Background:In response to increasingly stringent effluent nutrient criteria resulting from deteriorating surface water quality, biological nutrient removal (BNR) processes have become increasingly popular. In BNR processes, nitrogen and phosphorus can be removed simultaneously. These BNR processes employ a combination of anaerobic, anoxic and aerob...
Polymer Nanocomposites via a One-Step Synthesis Method
Our inventors have created some unique polymer nanocomposites which can be formed in one step! Specifically, they have synthesized polyethylene matrices containing silica or titania particles, using supercritical CO2 and acetic acid as the condensation agent. This novel method provides the advantages of combining the nanocomposite synthesis and dry...
Circulating Fluidized Beds for Continuous Protein Refolding
Background:Many recombinant expression systems deposit their valuable heterologous protein products in the form of insoluble inclusion bodies. These must be separated from cell debris, resolubilized by denaturing the proteins and then refolded into the native configuration in suitable buffers. This refolding is often facilitated by binding the prot...
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