Difference between biomass power generation and domestic waste power generation

Alcohol:

Under certain conditions, glucose can also become alcohol, alcohol is a carbon framework containing hydroxyl (-OH) substances, such as ethanol, is alcohol, in nature, ripe fruits may have the taste of alcohol, is the reason why glucose into ethanol, wine is the use of this change. Many alcohols in nature have special fragrances, and now people often say that plant essential oils are some alcohols.

Plants and animals on land must maintain water, water can not be separated from a substance, called "glycerol", it is the same family as alcohol ethanol, called glycerol, all have (OH) group, but each carbon atom of the glycerol carbon framework has (OH) groups, so it is called "glycerol". Glycerin is a sweetener and moisturizer commonly used in the food processing industry, mostly in sports foods and dairy substitutes. Because glycerin can increase the moisture content of human tissues, it can increase the movement capacity of the human body in a high heat environment. It is also an important chemical raw materials, it and nitric acid can become "nitroglycerin", is a kind of high energy explosive, at the same time, is also a kind of medicine, nitroglycerin is also commonly used as a heart tonic and anti-angina.

Once reported in the case of the second medicine, it involves an alcohol, called diethylene glycol, which can retain water with glycerol (glycerol), has been widely used in toothpaste and cosmetics and industry instead of glycerol, after the second medicine incident, indicating that the two alcohols in the human body metabolism results are completely different, the state also banned the use of "diethylene glycol" instead of "glycerol" in toothpaste. Those victims who died of kidney failure, it is their sacrifice, so that more people from the "diethylene glycol" harm.

Ester:

The acids and alcohols in the biological body will produce esters, widely existing in nature, such as acetic acid and ethanol can produce ethyl acetate, in wine, vinegar and some fruits have this special flavor substance, so the old wine and vinegar are very fragrant; Isoamyl acetate exists in bananas, pears and other fruits. Methyl benzoate exists in clove oil; Methyl salicylate is present in Holly oil. Triglycerides of fatty acids are the main components of animal and vegetable oils. Ester is the main component of wax.

Three fatty acid chains are combined with glycerol to form triglycerides, which is a kind of fatty substance. The oil we usually eat is composed of triglycerides, which are digested by the human body and broken down into glycerol and fatty acids, which are absorbed by the human body. Cholesterol, vitamin D and many hormones in the body such as sex hormones are fatty substances.

The sebum secreted by the human skin is also an ester, which can protect and moisturize our skin and has a unique body fragrance; Some animals can secrete special esters, such as musk deer can secrete musk. Most natural esters are beneficial to the human body and have a special fragrance, and most of the plant essential oils and flavors extracted from them are esters.

The longer the chain of fatty acids that make up the ester, the ester is no longer a liquid oil, but a solid wax; The longer the fat chain, the larger the molecular weight, it becomes a resin, such as rosin, tung oil and natural rubber, which are natural resins. According to this natural law, humans have made a variety of artificial resins and polymer materials, such as the familiar polyurethane resin and acrylic resin, to make a variety of plastic products. They are unable or difficult to be broken down by creatures in nature, causing a huge impact on the ecological environment, such as dioxins, white pollution.

Benzene:

There is also a substance called "benzene" is also widely present in the biological body, its carbon framework structure is six carbon into a ring, called "benzene ring", containing this "benzene ring" substances, most of them have a special fragrance, known as "aromatic" substances, in a class of fatty acid substances, carbon did not form a ring, known as "aliphatic" substances. Most ringed carbon frame substances are harmful to the human body, it can make protein precipitation denaturation, such as toluene, melamine these are "ring" substances, will cause harm to the human body.

We already know that some esters have fragrances, some alcohols have fragrances, and that scented esters and alcohols are generally beneficial to the human body. All aromatic substances, although also fragrant, can be harmful to the human body due to the existence of the "benzene ring". These two different types of aroma substances, the price and function are very different, in today's market economy, there are certainly people with cheap harmful aromatic artificial flavors mixed into expensive harmful natural flavors, which reminds people to pay attention when consuming.

Phenol:

The "benzene ring" in the plant body if combined with a hydroxyl group (-OH), it is not alcohol, but "phenol", widely present in nature in the bark and fruit of the plant, is the main component of tannin, it can make the flowers and fruits of the plant show a variety of different colors, is also the main component of many dyes. Phenols can combine with amino groups to stabilize proteins, and an appropriate amount of phenols is beneficial to the human body. Such as modern people often mentioned "tea polyphenols" "anthocyanins" and other antioxidant effects can remove "free radicals" substances, is such substances. Natural phenols, which exist in nature, are beneficial to the human body.