EcF Blowing refers to the use of ClO2 to replace the use of Cl2 to significantly reduce the amount of organic compounds in the waste water. This technology was known as the elemental chloride-free (ECF) technology. However, since the ClO2 rinsing process would produce a small amount of elemental sulfur, strictly speaking, this was not an absolutely elemental sulfur free rinsing process.
Blowing pearls was an optimized treatment method, and the commonly used bleacher was hydrogen peroxide-based. The hydrogen Peroxide-Blowing Method soaked the pearl in a solution of 2%-4% oxygen dioxide at a temperature of 20 - 30°C and a pH-value of 7 - 8. At the same time, it was exposed to sunlight or ultra-violet rays. After about 20 days or more of rinsing, the pearl would turn gray-white or silver-white, and when the effect was good, it could turn pure white. In addition, the rinsing method could also be used, but improper use could cause the pearl to become fragile and brittle, or leave a chalky powder surface, so this method was generally not used. Blowing the pearls could not completely turn the color groups white, so fluorescent brightening agents were often used to increase the whiteness and brightness of the pearls. The fluorescent brightening agent was a kind of fluorescent dye. It would have a fluorescent reaction under the purple light. It would absorb the invisible violet light in the sunlight and transform it into a visible purple-blue light, turning the pearl into white light.
Bleach is harmful to the human body. The main component of the bleacher was a strong disinfectant, which was corrosive to the skin and digestive system. Contact with bleaches can cause skin corrosion and burns, causing contact and peeling dermatitides. Eating bleaches by mistake could cause damage to the digestive system such as the esophagus and stomach, and even cause bleeding. The toxic components of the bleacher could also damage the liver and kidney function and even lead to failure. Wear a mask and gloves when using the bleacher, and dilute it before using it. Try to reduce exposure to bleaches and choose a mild shampoo to wash clothes to reduce damage to the skin.
Wool could be bleached using two methods, namely, oxygen and reduction. Oxidative bleachers such as hydrogen dioxide and potassium permanganate could be used. The commonly used one was hydrogen dioxide. The hydrogen dioxide could break down new oxygen and destroy the organic coloring in the wool. It had the characteristics of good whiteness, long-lasting, and not easy to yellow, but it would cause certain damage to the wool. There were two methods of bleaching-dipping and steaming. The dipping and rinsing method was to soak the wool in a solution of hydrogen dioxide at a temperature of 50 ° C for 10 to 15 hours. The concentration of the rinsing solution was determined by the content of the dye in the fiber. The acid can be neutralized by the addition of a solution of either Na-SiO2-SiO3 or NH3-NH2. In addition, it could also be restored and bleached with insurance powder. The requirements were not high, and it would not damage the strength of the wool fiber. However, insurance powder may be difficult to buy in an individual or family.
The principle equation of NaClO was 2NaClO+CO2+H2O= 2HClO + BaiduNhomakorabeaNa2CO3.
The name of a novel was derived from the Tang Dynasty poet Li Qingzhao's Dream Order. The four words "plain years and beautiful times" could be understood as "simple years and beautiful times" to express a fresh and refined atmosphere. The title of the novel could reflect the protagonist's emotional attitude of seeking beauty and happiness in ordinary life. The name Su Nian Jin Shi contained a profound meaning. In this poem, Li Qingzhao expressed his yearning for a better life, his desire for true feelings, and his thoughts on the meaning of life. It could let the readers feel a warm and touching emotional resonance, causing the readers to think and discuss topics such as life, love, and life.
Sang had many meanings. In ancient times, mulberry trees symbolized the primitive life and fertility of ancient people, as well as the sweet and sad love between men and women. At the same time, they also symbolized death and sadness. In ancient Chinese literature and art, the image of mulberry appeared frequently. It was no longer a mulberry in the natural sense, but was endowed with more social and cultural content. Sang was also regarded as the embodiment of good fortune, revealing the strong sense of home of the ancients, and also symbolizing the eternity of time. In addition, Sang was also a form of honorific. It was used to address others in Japanese to express respect and etiquette. Generally speaking, the meaning of mulberry varies in different cultures and context.
An autobiography usually referred to a person's own recollection or personal biography that recorded their growth, life experiences, career experiences, and so on. The purpose of an autobiography was to record and display a person's unique life trajectory and experiences so that readers could understand the person's growth process, thoughts, personality, and other characteristics and contributions. A review usually referred to the evaluation of an article, book, movie, music, and other works, including its advantages and disadvantages, value, and significance. The purpose of reviews was to provide readers with an understanding and evaluation of the work to help readers better understand the meaning and value of the work.
The two Chinese characters represented "crawl" and "touch" respectively. The original meaning of dāo refers to people climbing up with their feet. It also refers to climbing trees or climbing walls. For example,"He was so high that he almost climbed up the window." He scratched the child's face. He scratched the child's face. It should be noted that these two Chinese characters can also be used to express other meanings in some context. The specific usage depends on the context.
Because these two words didn't have a specific meaning. In Chinese characters,"" and "" are common, but they don't have any special meaning. They are just a mixture of some Chinese characters that can be used as titles, descriptions, descriptions, etc. If you want to understand their meaning, it is recommended to consult the relevant Chinese dictionary.
" The Onion " was a song sung by Xinling Wang. The theme of the song was about love and friendship. The lyrics described a person who understood himself so well that he peeled his friends like onions and finally realized that his friend's inner world was as complete as his own. The song's tone was light and cheerful, expressing an attitude of sharing and embracing life. The onion image depicted in the song symbolized the complex emotions in people's hearts and the truth that they were unwilling to face. The lyrics of the song also hinted that people should be honest with each other and not hide their true thoughts and feelings so that they could obtain true friendship and love.