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The advantages and disadvantages of traditional air flotation and shallow air flotation were compared. The effect of shallow air flotation on acrylic fiber wastewater treatment was studied through the wastewater treatment project of a chemical fiber corporation in Jilin province. The results showed that, using shallow air flotation machine to pretreat acrylic fiber wastewater, the average removal rate of CODCr reached above 11.3%, which was over 50% higher than that by traditional rectangular tank air flotation machine(about 5.6%), which showed that, shallow air flotation had a good performance when treating acrylic fiber wastewater.http://www.ysle-et.com/shallow-dissolved-air-flotation/

We present an example of applying ‘need-driven’ product design principle to the development of a rapid test kit to detect SARS-COV-2 (COVID-19). The tests are intended for use in the field and, longer term, for home use. They detect whether a subject is currently infected with the virus and is infectious. The urgent need for large numbers of tests in field setting imposes constraints such as short test time and lack of access to specialist equipment, laboratories and skilled technicians to perform the test and interpret results. To meet these needs, an antigen test based on RT-LAMP with colorimetric readout was chosen. Direct use of swab sample with no RNA extraction was explored. After extensive experimental study (reported elsewhere), a rapid test kit has been fabricated to satisfy all design criteria.http://www.yicaremedical.com/rapid-test/

Cost and Weight of the Machine – The initial cost of a lathe machine is high. It actually depends on the purpose and how big the production is but most lathe machines used in big companies cost up to $50,000. It also takes up a lot of space because it is a huge machine and sometimes, it requires extra fittings and attachments which makes it bigger and more expensive. The use of CNC lathe machine is also not advisable for small production.http://www.xzylathe.com/lawn-mower/

Construction and mining sites kick up a lot of dust that would impede progress without water trucks with 2,000-4,000-gallon tanks that tamp down dust very efficiently by following a grading equipment that is leveling and preparing soil for work. Dusty jobsites not only slow down work but increase health risks such as eye and lung irritation, bronchitis, asthma and heart disease, and by dampening dust, water trucks remove them from the air that miners and construction workers are breathing.http://www.tongyatrailer.com/sanitation-vehicle/water-truck/

Dust, dirt, and grime can ruin the beauty of different decorative items or even the surfaces in houses or offices. How are you planning to clean them without any extra effort? The best solution is to use quality surface wipes to clean and disinfect the surfaces simultaneously. Note that every wipe functions differently. You will find wipes in different forms, quantities, and sizes on the market. Your choice depends on your cleaning needs. If you want to get your hands on the best surface wipes of 2022, the following products may be suitable options for you.http://www.nicewetwipes.com/disinfectant-wipes/surface-wipes/

Based on a triangular shape, a truss tower is a structure designed to support heavy loads. Steel truss towers provide the large majority of tower installs today. Many years ago wood truss towers saw common use but have since been surpassed by their steel counterparts. In this article, you will learn what a trussed tower is, trussed tower applications, and the differences between a trussed tower and a lattice framework.http://www.leadertruss.com/aluminum-truss/aluminum-lighting-truss/truss-tower.html

The raw material enters the machine from the top hopper/storage hopper. Through the vibration of the vibrator device, the raw material slides down the channel accelerate down into the observation zone in the sorting cabinet and pass between the sensor and the background plate. Under the action of the LED light source, according to the intensity and color change of the light, the output signal of the system is driven to drive the solenoid valve to blow the heterochromatic particles into the waste outlet hopper, and the accepted material continues to fall to the finished product cavity of the acceptation outlet hopper. In order to achieve the purpose of color sorting.http://www.jxzb-mechanical.com/color-sorter/

The machine concept differs from the single-twist system in that one rotor turn generates two cable twists / turn. The braid is given the first twist at the stranding point of the system feed. At this point, the stranding material still has twice the length of lay of the desired final geometry. The final braid length of lay with the second stranding twist is only completed at the second turning point, before being introduced back into the static coil former.http://www.jslmet.com/tube-stranding-machine/horizontal-pipe-stranding-machine/double-twist-stranding-machine.html