"Environmental Protection and Green Chemistry" Chemistry and Sustainable Development PPT Courseware

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"Environmental Protection and Green Chemistry" Chemistry and Sustainable Development PPT Courseware

Part One: Core Competency Development Goals

1. Understand the main factors, hazards and prevention methods of environmental pollution, understand the importance of chemistry to environmental protection, and cultivate a "scientific attitude and social responsibility" to protect the environment.

2. Understand the connotation of green chemistry and atomic economic reactions, know their importance in utilizing resources and protecting the environment, strengthen environmental protection awareness and cultivate the concept of green chemistry.

Environmental protection and green chemistry PPT, part 2 content: 01 Chemistry and environmental protection

Knowledge sorting

1. The significance of environmental quality monitoring

By analyzing and measuring the _________ and _________ of pollutants, providing reliable data for _________ and _________ pollution is the basis for __________________ and _________.

2. Chemistry and “three wastes” pollution

(1) "Three wastes" pollution: refers to the environmental pollution caused by _________, _________ and _________ produced in industrial production.

(2) Atmospheric pollutants and secondary pollutants

(3) Chemical and "sewage" treatment

① Commonly used methods for sewage treatment: _________, _________ and biological methods, etc.

② "Third-level" treatment of sewage

(4) Chemistry and "waste" and domestic waste

Disposal principles: _________, _________ and _________, to achieve the two purposes of reducing environmental pollution and recycling resources.

True or false

(1) The environmental quality monitoring work carried out by chemists is not necessary, as long as there is pollution control ()

(2) CO, NOx, and SO2 produced by fossil fuel combustion are secondary pollutants ()

(3) "Burning coal to fix sulfur" and "catalytic purification of automobile exhaust gas" can both improve air quality ()

(4) Solid waste such as industrial waste and domestic garbage has little impact on the environment and does not need to be processed ()

(5) Primary treatment of sewage usually uses chemical and biological methods to remove difficult-to-dissolve pollutants ()

Understand the application

Ⅰ. In order to prevent acid rain and reduce SO2 emissions into the atmosphere when coal is burned, quicklime is mixed with sulfur-containing coal in industry to "fix sulfur" (to prevent sulfur compounds from entering the atmosphere), and finally generate gypsum. Try to answer:

(1) The reactions involved in the entire "sulfur fixation" process are ① SO2 + CaO == CaSO3 ② 2CaSO3 + O2 == 2CaSO4, and the reaction types involved are __________ (fill in the serial number).

①Combination reaction ②Decomposition reaction ③Replacement reaction ④Metathesis reaction ⑤Redox reaction ⑥Non-redox reaction ⑦Ionic reaction ⑧Non-ionic reaction (molecular reaction)

(2) Compare this method with the mixing method of limestone powder and sulfur-containing coal, which one is better ______ (A. quicklime B. limestone), the reason is ____________________________________________.

(3) What do you think can be done to reduce the occurrence of acid rain is ________ (fill in the letters).

① Use less coal as fuel; ② Build higher factory chimneys; ③ Desulfurize fuel coal first; ④ Add lime to the soil to prevent acidification; ⑤ Develop new energy and avoid large amounts of emissions of oxides containing S and N.

A.①②③ B.②③④⑤

C.①③⑤ D.①③④⑤

Ⅱ. Activated carbon combined desulfurization and denitrification technology (AC) is a relatively mature desulfurization and denitrification technology. It can generate ammonium salts from SO2 and NOx in the exhaust gas through a series of reactions at a lower temperature, thereby turning waste into treasure. The working diagram is as follows:

(1) SO2 is oxidized on the surface of activated carbon and finally generates sulfuric acid. The chemical equation of the reaction is: __________________________________________________.

(2) After adding NH3 to the absorption tower, NO and NO2 in the exhaust gas can be removed. Write the chemical equations for the reaction of NO and NO2 with NH3 respectively: ____________________________, ____________________________.

(3) The reaction between NH3 and H2SO4 generated in the absorption tower will produce ammonium salt. Write the chemical equation of the reaction: ____________________________________________.

(4) The cost of activated carbon is high. In industry, activated coke is generally used as an adsorbent for desulfurization and denitrification. Activated carbon comes from coal carbonization products. Coal carbonization is a ________ (fill in "physical" or "chemical") change. From coal carbonization The operation method to obtain benzene and xylene in products is ____________.

Tracking reinforcement

1. Air is an important resource necessary for human survival. The "Blue Sky Project" launched to improve air quality has received the support of the whole people. The following measures are not conducive to the construction of the "Blue Sky Project":

A. Promote the use of coal-fired desulfurization technology to prevent and control pollution

B. Increase the mining speed of oil and coal and increase the supply of fossil fuels

C. Implement greening projects to prevent and control dust pollution

D. Utilize and develop new energy vehicles to eliminate vehicle exhaust pollution

2. In order to protect the natural environment and improve people's quality of life, we must pay attention to dealing with "white pollution". The "white pollution" refers to

A. White smoke from the smelting plant B. White powder from the lime kiln

C. Polyvinyl chloride and other plastic waste D. White building materials

3. The content of some elements in seawater in my country's offshore waters generally exceeds the standard, eutrophication is very serious, and "red tide" phenomena often occur. Which of the following daily necessities can cause "red tide"

A.Soap B.Phosphorus-containing detergent

C. Enzyme laundry detergent D. Cosmetics

Environmental Protection and Green Chemistry PPT, Part 3 Content: 02 Green Chemistry

Knowledge sorting

1. Core idea

Change the concept and practice of "pollute first and then treat", use _____________ and __________________ to reduce or eliminate harmful chemicals involved in products in __________ and ___________, and achieve the goal of reducing or eliminating environmental pollution from _________.

2. “Atomic Economic Reaction”

The atoms of the reactants ________ are the desired final products, and the atomic utilization rate is ________.

3. Schematic diagram of green chemistry

4. The three principles (3R principles) followed in the development and utilization of natural resources are ________, ________ and ________.

True or false

(1) "Green chemistry" is the chemical idea of ​​effectively treating pollution ()

(2) "Green chemistry" means not emitting any harmful substances in chemical production ()

(3) Installing a "catalytic converter" on the automobile exhaust pipe to catalyze CO and NO into N2 and CO2 is in line with the concept of green chemistry ()

(4) The "3R" principle (reduction, reuse and recycling) is the basic principle for the development and utilization of natural resources ()

(5) Plant straw contains a large amount of potassium, and burning it as potassium fertilizer is in line with the idea of ​​"green chemistry" ()

(6) Using sunlight to generate electricity and photolysis water to produce hydrogen is an effective way to solve the energy crisis and achieve sustainable development ()

Tracking reinforcement

1. In the "green chemical process", the ideal state is that all atoms in the reactants are converted into the desired final product, that is, the atom utilization rate is 100%. Which of the following reaction types embodies the principle of "atom economy"

① Displacement reaction ② Combination reaction ③ Decomposition reaction ④ Substitution reaction ⑤ Addition reaction ⑥ Polyaddition reaction ⑦ Esterification reaction

A.②⑤⑥ B.②④⑤

C. Only ⑥ D. Only ⑥⑦

2. (2018 Quanzhou Grade 1 Test) Which of the following reactions best meets the atomic economy requirements of green chemistry?

A. Polymerization of ethylene into polyethylene polymer material

B. Preparation of methyl chloride from methane and chlorine

C. Use copper and concentrated nitric acid as raw materials to produce copper nitrate

D. Use SiO2 to prepare high-purity silicon

Keywords: PPT courseware for high school chemistry compulsory course 2 from the People's Education Press is free to download, environmental protection and green chemistry PPT download, chemistry and sustainable development PPT download, .PPT format;

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"Environmental Protection and Green Chemistry" Chemistry and Sustainable Development PPT:

"Environmental Protection and Green Chemistry" Chemistry and Sustainable Development PPT Part One Content: Foundation for Essential Knowledge Literacy 1. Chemistry and Environmental Protection 1. Environmental Protection (1) Environmental issues: mainly refers to the unreasonable development and utilization of nature due to human beings The ecology caused by resources...

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Update Time: 2024-11-22

This template belongs to Chemistry courseware People's Education Press High School Chemistry Compulsory Course 2 industry PPT template

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