scholarly journals Biosorption of Water Pollutants by Fungal Pellets

Water ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 1155 ◽  
Author(s):  
Adriana Legorreta-Castañeda ◽  
Carlos Lucho-Constantino ◽  
Rosa Beltrán-Hernández ◽  
Claudia Coronel-Olivares ◽  
Gabriela Vázquez-Rodríguez
Keyword(s):  
Large Scale ◽  
High Efficiency ◽  
Low Cost ◽  
Fungal Cell ◽  
Water Pollutants ◽  
Operational Conditions ◽  
Fungal Pellets ◽  
Water And Wastewater ◽  
Real Wastewater

Fungal biosorption is an environmental biotechnology based on the ability of the fungal cell wall to concentrate harmful water pollutants. Among its advantages are its simplicity, high efficiency, flexibility of operation, and low cost. The biosorptive performance of fungal pellets is getting growing attention since they offer process advantages over the culture of disperse mycelia, such as an enhanced biomass separation, and a high resilience in severe environmental conditions. In this review, biosorption capacity of fungal pellets towards heavy metals, dyes, phenolic compounds, humic substances, pesticides, and pharmaceuticals was reviewed. Available data about the adsorption capacity of pellets, their removal efficiency, and the operational conditions used were collected and synthesized. The studies relying on biodegradation were discarded to present only the possibilities of fungal pellets for removing these concern pollutants through biosorption. It was found that the biosorption of complex mixtures of pollutants on fungal pellets is scarcely studied, as well as the interfering effect of anions commonly found in water and wastewater. Furthermore, there is a lack of research with real wastewater and at pilot and large scale. These topics need to be further explored to take full advantage of fungal pellets on improving the quality of aquatic systems.

scholarly journals The design and research of the shared kitchen system in the hospital

2018 ◽  
Vol 176 ◽  
pp. 01011
Author(s):  
YE Xin ◽  
JI Qian
Keyword(s):  
Quality Of Life ◽  
Social Interaction ◽  
High Efficiency ◽  
Low Cost ◽  
Space System ◽  
High Quality ◽  
Economy Model ◽  
New Directions ◽  
The Right

The shared economy has been developing rapidly with low cost, low consumption and high environmental efficiency features under the background of internet waves. The shared economy model has emerged in housing, catering, and travel. As people look forward to high quality of life and their social interaction need, the shared kitchen platform arises at the right moment. This paper takes the shared kitchen as an example, focusing on the patients and their caregivers, the existing shared kitchens and its service platform as well as the space system design and human-computer interaction of the shared kitchen have been investigated and analysized. Taking the "high efficiency, the intelligence and the humanization" as the design principles, we are committed to exploring new directions for modular kitchen design under the background of shared economy.

scholarly journals Automated Wormscan

F1000Research ◽  
2017 ◽  
Vol 6 ◽  
pp. 192 ◽  
Author(s):  
Timothy Puckering ◽  
Jake Thompson ◽  
Sushruth Sathyamurthy ◽  
Sinduja Sukumar ◽  
Tirosh Shapira ◽  
...  
Keyword(s):  
Large Scale ◽  
Moving Objects ◽  
Low Cost ◽  
Automated System ◽  
Software Training ◽  
Robust Identification ◽  
Labour Costs ◽  
Difference Images ◽  
Rapid Data Acquisition

There has been a recent surge of interest in computer-aided rapid data acquisition to increase the potential throughput and reduce the labour costs of large scale Caenorhabditis elegans studies. We present Automated WormScan, a low-cost, high-throughput automated system using commercial photo scanners, which is extremely easy to implement and use, capable of scoring tens of thousands of organisms per hour with minimal operator input, and is scalable. The method does not rely on software training for image recognition, but uses the generation of difference images from sequential scans to identify moving objects. This approach results in robust identification of worms with little computational demand. We demonstrate the utility of the system by conducting toxicity, growth and fecundity assays, which demonstrate the consistency of our automated system, the quality of the data relative to manual scoring methods and congruity with previously published results.

A New Flexible Track Automatic Drilling System

2013 ◽  
Vol 433-435 ◽  
pp. 2178-2183 ◽  
Author(s):  
Yun Bo Bi ◽  
Yi Hang Jiang ◽  
Yong Chao Li ◽  
Wei Wang ◽  
Mian Gao ◽  
...  
Keyword(s):  
High Efficiency ◽  
Low Cost ◽  
System Structure ◽  
Aircraft Assembly ◽  
Large Size ◽  
Flexible Track ◽  
Transformation Algorithm ◽  
Drilling System ◽  
High Computational Efficiency

The Flexible track automatic drilling equipment is widely used in aircraft assembly because of the low cost, high efficiency and high quality of holes. This paper constructs a new flexible track drilling system for large-size aircraft assembly. The system structure is introduced, and the transformation algorithm between product/device coordinate system and axes position parameters is proposed. The experimental results show that the transformation algorithm has the merits of high computational efficiency and high stability, and can meet the requirement of precision drilling.

scholarly journals High-resolution combinatorial patterning of functional nanoparticles

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Xing Xing ◽  
Zaiqin Man ◽  
Jie Bian ◽  
Yadong Yin ◽  
Weihua Zhang ◽  
...  
Keyword(s):  
Large Scale ◽  
High Efficiency ◽  
Low Cost ◽  
Dip Coating ◽  
Colloidal Nanoparticles ◽  
Pixel Size ◽  
Functional Nanoparticles ◽  
Error Ratio ◽  
Scientists And Engineers ◽  
Daunting Challenge

AbstractFast, low-cost, reliable, and multi-component nanopatterning techniques for functional colloidal nanoparticles have been dreamed about by scientists and engineers for decades. Although countless efforts have been made, it is still a daunting challenge to organize different nanocomponents into a predefined structure with nanometer precision over the millimeter and even larger scale. To meet the challenge, we report a nanoprinting technique that can print various functional colloidal nanoparticles into arbitrarily defined patterns with a 200 nm (or smaller) pitch (>125,000 DPI), 30 nm (or larger) pixel size/linewidth, 10 nm position accuracy and 50 nm overlay precision. The nanopatterning technique combines dielectrophoretic enrichment and deep surface-energy modulation and therefore features high efficiency and robustness. It can form nanostructures over the millimeter-scale by simply spinning, brushing or dip coating colloidal nanoink onto a substrate with minimum error (error ratio < 2 × 10−6). This technique provides a powerful yet simple construction tool for large-scale positioning and integration of multiple functional nanoparticles toward next-generation optoelectronic and biomedical devices.

scholarly journals Toxicity Reduction of Industrial and Municipal Wastewater by Advanced Oxidation Processes (Photo-Fenton, UVC/H2O2, Electro-Fenton and Galvanic Fenton): A Review

Catalysts ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 612 ◽  
Author(s):  
Juan José Rueda-Márquez ◽  
Irina Levchuk ◽  
Manuel Manzano ◽  
Mika Sillanpää
Keyword(s):  
Cost Estimation ◽  
Advanced Oxidation Processes ◽  
Municipal Wastewater ◽  
High Efficiency ◽  
Advanced Oxidation ◽  
Toxicity Assessment ◽  
Operational Conditions ◽  
Oxidation Processes ◽  
Real Wastewater ◽  
By Products

The application of Fenton-based advanced oxidation processes (AOPs), such as photo-Fenton or electro-Fenton for wastewater treatment have been extensively studied in recent decades due to its high efficiency for the decomposition of persistent organic pollutants. Usually Fenton-based AOPs are used for the degradation of targeted pollutant or group of pollutants, which often leads to the formation of toxic by-products possessing a potential environmental risk. In this work, we have collected and reviewed recent findings regarding the feasibility of Fenton-based AOPs (photo-Fenton, UVC/H2O2, electro-Fenton and galvanic Fenton) for the detoxification of real municipal and industrial wastewaters. More specifically, operational conditions, relevance and suitability of different bioassays for the toxicity assessment of various wastewater types, cost estimation, all of which compose current challenges for the application of these AOPs for real wastewater detoxification are discussed.

A Low Cost ZSM-5 Zeolite Obtained from Rice Hull Ash

2005 ◽  
Vol 498-499 ◽  
pp. 676-680 ◽  
Author(s):  
A.A. Fernandes ◽  
E.U.C. Frajndlich ◽  
Humberto Gracher Riella
Keyword(s):  
Large Scale ◽  
High Efficiency ◽  
Low Cost ◽  
Amorphous Structure ◽  
Industrial Applications ◽  
Rice Hull ◽  
Rice Hull Ash ◽  
Industry Waste ◽  
Pure Silica ◽  
Zeolite Formation

The high pure synthetic zeolite have a large application in industry and agriculture, being nowadays in majority imported in Brazil. The biomass like rice hull ash (RHA), a rice industry waste, can be real advantageous in manufacture of different materials, since that is produced in large scale in the country. The silica extraction from RHA by alkaline leaching is a low energetic coast process and high efficiency, obtaining high pure silica with high reactive amorphous structure, very interesting for zeolite production. In this work was developed a economically feasible route for the production of high purity and crystallinity ZSM-5 zeolite, free of expensive template, starting from a low value intake, a industrial waste, producing a high value materials. The extracted silica from RHA in sodium silicate form is precipitated in the proper zeolite formation reactional mixture. The ZSM-5 have a lot of industrial applications due your high selectivity in catalytic reactions and high thermal and acid stability.

scholarly journals Large-scale brackish water desalination plants in Gaza Strip: assessments and improvements

2013 ◽  
Vol 3 (3) ◽  
pp. 315-324 ◽  
Author(s):  
Yunes Mogheir ◽  
Ahmad A. Foul ◽  
A. A. Abuhabib ◽  
A. W. Mohammad
Keyword(s):  
Brackish Water ◽  
Large Scale ◽  
Potable Water ◽  
Gaza Strip ◽  
Water Desalination ◽  
Saline Groundwater ◽  
Operational Conditions ◽  
The Gaza Strip ◽  
Desalination Plants

Water scarcity is a serious challenge in the Gaza Strip, a region that is mostly considered to be semi-arid. In this region, the population's options for provision of potable water are limited to desalination of saline groundwater. Six large brackish water desalination plants (BWDPs) and one seawater desalination plant are operating and providing drinking water along with small private plants. The BWDPs were assessed in terms of operational conditions and quality of their feed and permeate with the aim of estimating essential improvements required as well as performance significance. All these plants are reverse osmosis plants and their operational conditions are similar in terms of production, recovery rate, and energy consumption. The quality of the plants’ feed was found not to comply with WHO and Palestinian Standards in most cases, unlike the permeate from all plants. The assessment made through this study assists in better understanding of the current situation of the large-scale desalination plants in Gaza and recommending essential improvements needed to increase water production of these plants without increasing abstraction and feed quantities. In addition, multi-criteria analysis used to evaluate BWDPs performance may assist in prioritizing improvements application.

Liquid Metal Printing for Manufacturing Large-Scale Flexible Electronic Circuits

2014 ◽  
Author(s):  
Yi Zheng ◽  
Zhi-Zhu He ◽  
Jun Yang ◽  
Jing Liu
Keyword(s):  
Liquid Metal ◽  
Large Scale ◽  
High Efficiency ◽  
Printed Electronics ◽  
Low Cost ◽  
Treatment Temperature ◽  
Consumer Electronics ◽  
Plastic Substrate ◽  
Electronic Circuits ◽  
Large Area

The advancement of printed electronics technology has significantly facilitated the development of electronic engineering. However, so far there still remain big barriers to impede the currently available printing technologies from being extensively used. Many of the difficulties came from the factors like: complicated ink-configurations, high post-treatment temperature, poor conductivity in room temperature and extremely high cost and time consuming fabrication process. From an alternative strategy, our recently invented desktop liquid metal printer offered a flexible way to better address the above deficiencies. Through modifying the system developed in the authors’ lab, here we demonstrated the feasibility of the method in quickly and reliably printing out various large area electronic circuits. Particularly, the liquid metal ink made of GaIn24.5 alloy, with a high electrical resistivity of 2.98×10−7 Ω·m, can be rapidly printed on polyvinyl chloride (PVC) substrate with maximum sizes spanning from centimeter size to meter large. Most important of all, all these manufactures were achieved at an extremely low cost level which clearly shows the ubiquitous value of the liquid metal printer. To evaluate the working performance of the present electronics fabrication method, the electrical resistance and wire width of the printed circuits were investigated under multiple overprinting cycles. For practical illustration purpose, LED lighting conductive patterns which can serve as a functional electronic decoration art were fabricated on the flexible plastic substrate. The present work sets up an example for directly making large-scale ending consumer electronics via a high-efficiency and low-cost way.

A Dry Trenching Diaphragm Wall in Soft Soil

2012 ◽  
Vol 170-173 ◽  
pp. 666-669
Author(s):  
Zheng Sheng Zou ◽  
Xin Liu ◽  
Wen Qing Zhang ◽  
Qing Hua Kong
Keyword(s):  
Environmental Pollution ◽  
Water Consumption ◽  
High Efficiency ◽  
Low Cost ◽  
Soft Soil ◽  
Construction Cost ◽  
Diaphragm Wall ◽  
Environment Friendly ◽  
A New Technique

Generally, it is difficult to control the trench stability and panel joint permeability in the construction of a diaphragm wall. The high construction cost is inevitable because of the environmental pollution due to the slurry, waste of water consumption, and debris disposal treatment. A new technique, called the dry trenching diaphragm wall with self-guided double-rectangular-casing, is thereafter developed in the current study to avoid these problems. In this technique, two pieces of rectangular steel casing are driven in sequence and guided each other. The trench is made by squeezing into the soft soil. The panel alignment and straightness are assured without any joints due to the dry concrete pouring instead of the influences of the slurry. Compared to the regular diaphragm wall, the technique is an environment-friendly, less emissive and energy-conserved one by eliminating the slurry pollution with the low cost. It shows that the quality of panel connection is reliable, and the permeation-proof performance is superior with high efficiency in wall-forming due to non-joint interlocking.

Nanophotonics silicon solar cells: status and future challenges

2015 ◽  
Vol 4 (4) ◽  
Author(s):  
Baohua Jia
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Large Scale ◽  
High Efficiency ◽  
Low Cost ◽  
Silicon Solar Cells ◽  
Solar Energy Harvesting ◽  
Material Usage ◽  
Future Challenges ◽  
Light Management

AbstractLight management plays an important role in high-performance solar cells. Nanostructures that could effectively trap light offer great potential in improving the conversion efficiency of solar cells with much reduced material usage. Developing low-cost and large-scale nanostructures integratable with solar cells, thus, promises new solutions for high efficiency and low-cost solar energy harvesting. In this paper, we review the exciting progress in this field, in particular, in the market, dominating silicon solar cells and pointing out challenges and future trends.

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