Wednesday, August 19, 2020

Solid State Wind Energy Generator. A Revolutionary Device





In this video, we are going to look at Solid State Wind Energy Generators. These devices create electricity and have no moving parts. Given that most of the maintenance costs in traditional wind turbines are because of moving parts, from gearbox to blades, this can be a breakthrough development.

https://newatlas.com/ewicon-bladeless-wind-turbine/26907/

Where most wind turbines generate electricity through mechanical energy, the EWICON (short for Electrostatic WInd energy CONvertor) creates potential energy with charged particles – in this case, water droplets. The current design consists of a steel frame holding a series of insulated tubes arranged horizontally. Each tube contains several electrodes and nozzles, which continually release positively-charged water particles into the air. As the particles are blown away, the voltage of the device changes and creates an electric field, which can be transferred to the grid for everyday use.

https://en.wikipedia.org/wiki/Vaneless_ion_wind_generator


Saturday, August 1, 2020

Virus and bacteria inactivation by CO2 bubbles in solution

https://www.nature.com/articles/s41545-018-0027-5

Virus and bacteria inactivation by CO2 bubbles in solution

Abstract

The availability of clean water is a major problem facing the world. In particular, the cost and destruction caused by viruses in water remains an unresolved challenge and poses a major limitation on the use of recycled water. Here, we develop an environmentally friendly technology for sterilising water. The technology bubbles heated un-pressurised carbon dioxide or exhaust gases through wastewater in a bubble column, effectively destroying both bacteria and viruses. The process is extremely cost effective, with no concerning by-products, and has already been successfully scaled-up industrially.

Introduction

Wastewater usually contains human enteric viruses like hepatitis and rotavirus and bacteria like Escherichia coli. If this water is to be reused it has to be disinfected. Collivignarelli et al.1 found that ultraviolet (UV) irradiation and chemical treatments using chlorine, chlorine dioxide, peracetic acid or ozone were the most used technologies for wastewater disinfection. However, all these water disinfection technologies have limitations. For example, chlorine and chlorine dioxide react with organic compounds and form reactive chlorinated organic compounds that are hazardous to humans. In addition, chlorine needs at least 30 min contact time and is not able to eliminate Cryptosporidium. Chlorine dioxide has high management costs and is very unstable. Other disinfection methods such as ozone and UV irradiation are complex to operate and maintain. Rotavirus can be resistant to UV treatments and its efficiency is affected by the dissolved organic and inorganics in the wastewater, as well as its colour and turbidity.2 Paracetic acid increases chemical oxygen demand (COD) and biochemical oxygen demand (BOD) due to the formation of acetic acid.1 Therefore, a major challenge exists to develop new, energy-efficient technologies to address these problems.
Here we report on one such candidate technology for sterilisation that seems to do the job. It uses atmospheric pressure bubbles of CO2 in a new device (ABCD). If this process successfully inactivates MS2 virus (ATCC15597-B1) and E. coli C-3000 (ATCC15597), that are surrogates for enteric pathogens, then this technology will be able to inactivate real waterborne viruses and bacteria for water reuse without the need for (high energy) boiling.
In preceding work3,4 we conducted different experiments where the bubble diameter of 1–3 mm was measured using high speed cameras. An earlier variant we called the hot bubble column evaporator (HBCE) process.5,6,7 It used hot air bubbles of 1–3 mm diameter and was operated in the temperature range of 150–250 °C. The bubbles transferred heat to surrounding water and thermally inactivated dispersed viruses and bacterial cells. At the same time, low, steady-state solution temperatures in the range of 42–55 °C were maintained.8 An instantaneous transient hot surface layer must also form around the rising, initially hot, air bubbles. The inactivation process clearly involves collisions of bacteria or viruses with the hot air bubbles5,6 and the surrounding heated layers.7 Other gases (air, N2, O2 and Argon) achieved similar inactivation results, at 200 °C inlet gas temperatures for viruses and at 150 °C for bacteria.9 However, CO2 gas, at the same inlet gas temperature, is far superior with much higher inactivation rates at lower temperatures than with other gases.9 Hence, we here embark on a more thorough study of the effects of CO2 bubbling on viral and bacterial inactivation in pure sodium chloride solutions, using the HBCE device at atmospheric pressure with the acronym ABCD.
Many waste disposal industries like landfills, bio-gas plants and coal power plants emit large amounts of CO2. Hence, the potential use of CO2 bubbles in water treatment processes to sterilise water at atmospheric pressure offers an attractive new technology at the very least. Earlier we showed9 too that the heat generated in exhaust combustion gases that contain CO2 can also be used to increase the performance of this new sterilisation treatment. That we will also take further.
The process is very different to others that involve CO2. Thus, many authors10 have shown that pressurised CO2 in a range of 5 to 1000 atm can achieve viral and bacterial inactivation.
High-pressure carbon dioxide has been proposed as a cold pasteurisation alternative for more than 25 years.11 The new ABCD reactor, described here, achieves equivalent or better results but without the need for pressurisation, i.e., at just 1 atm. The process has been patented by the University of New South Wales as Australian Patent Application No. 2017904797.

Biodegradable foam


We have had biodegradable foam peanuts now for some time.

But I am looking at using foam as a lightweight , low cost (hopefully) building material for everything from robots to houses.

The problem is the full life cycle.  How does one dispose of massive amounts of plastic or foam from whole building contrustructed from it.  Cement, and concretes are broken up and reused as filler dumped in to landfill.

The wood is recycled or landfill, today wood is too expensive to just scrap from old buildings.

Metals are easily recycled.

What happens with Fiberglass, and other materials like gypsum board. this is all landfilled, and at least there is nothing toxic leaching out.

I want something I can made model airplane wings from, skyscraper facades from .


https://en.wikipedia.org/wiki/Foam_peanut

Search Results

Featured snippet from the web

Biodegradable packing peanuts are made from natural, nontoxic sources, such as wheat and corn starch. They dissolve in water and can be thrown into compost piles after a single use. In addition, biodegradable foam peanuts do not have an electrostatic charge, meaning they will not stick to clothes.

Starch-based packing peanuts

In the early 1990s, starch-based packing peanuts were developed as a more environment-friendly alternative. The starch in the peanuts comes from crop-based sources rather than petroleum-based polystyrene, and is non-toxic. One of the first brands of biodegradable peanuts, Biofoam, is made from the grain sorghum;other brands are made from corn starch. Biodegradable foam peanuts have no electrostatic charge, another benefit over polystyrene. Being biodegradable and nontoxic, they are also safe for humans and pets if ingested accidentally.However, they are not produced in food-safe conditions, and are not recommended for eating. Also, during the manufacturing process, the nutritional value is removed from starch-based packing peanuts. This removes edible components, such as sugars, that would otherwise attract rodents and bugs. Their main drawbacks compared with polystyrene are lower resilience, higher weight (6.5 to 13 g per litre/0.4 to 0.8 lb per cubic foot), dust creation, potential attraction of rodents, and higher price. Starch-based peanuts are soluble in water, and polystyrene peanuts are soluble in acetone, but not vice versa.  Starch based products can be disposed with down the sink, dissolving on contact with the water.





https://greencellfoam.com/

https://www.superbiobag.com/biodegradable-foam/biodegradable-foam.html

This 'Nanowood' Is The Biodegradable Alternative To Styrofoam We Need

https://www.greenmatters.com/news/2018/03/14/Eafh8/nanowood-styrofoam
This is where a new material with the same convenience was developed at the University of Maryland. Nanowood is created from extra wood that’s mixed with cheap chemicals like sodium hydroxide and hydrogen peroxide. These chemicals take out the cell walls and leaves nanofibers of cellulose, or nanowood.

EcoCradle: Can mushroom packaging be the new wave for green purchasing?
http://www.earthtimes.org/going-green/ecocradle-biodegradable-mushroom-packaging/2112/

Biodegradable Styrofoam Made of Milk, Clay
https://www.seeker.com/biodegradable-styrofoam-made-of-milk-clay-discovery-news-1766491327.html
We already have plastics made from corn and sugar. Now, scientists have created a Styrofoam-like material using mostly milk proteins and clay.



Counter test

Blogger isn't letting me put my counter on the page.

 I can run it from an iframe.



But not directly...

And even odder is that all my gif are being and html over SSL is being replaced by my AT&T isp with webm and even putting the image as a base64 encoded data inline and not sent as a separate gif image.

I really am confused how this is they are doing some sort of man in the middle on my SSL sockets the could be end to end to my web server, that I control...