HJ 708-2014Technical guideline for environmental impact assessment iron and steel construction projects (English PDF)

3.1 Steel Construction Projects

It refers to the construction containing sinter/pellet, coke, iron and steel smelting and rolling processing, ferroalloy smelting of its content project.

3.2 Metal balance

Refers to the use of the principle of conservation of mass, indicating some kind of balance between the metal element in the investment process, outputs, lost between.

3.3 Metal Recycling rate

It refers to the production process, the final product of a metal element in the quality of inputs and raw material quality of the metal element the ratio, expressed as a percentage.

3.4 Poisonous and harmful elements balance

Refers to the use of the principle of conservation of mass, indicating that the production process input and output material sulfur, fluorine, chromium, nickel and other elements Balance between quality.

3.5 Water balance

It refers to the process and the entire plant as a unit, in consideration of water quality, water temperature and other process requirements, based on the description of the input and output of water Balance between.

3.6 Gas Balance

It refers to the whole plant as a unit, coke oven gas, blast furnace gas, converter gas, smelting reduction furnace gas and furnace gas production Health and balance between the amount of usage, the amount of loss, emission quantities.

3.7 Production of fresh water

It refers to the production of steel construction projects needed fresh water. Including access to tap water from the city's water, from surface water (river, Rivers, lakes and reservoirs) and access to water wells, and water purchased in quantity, not including corporate collect rainwater, seawater drawn and urban sewage water.

4.1 Environmental factors identification

4.1.1 identify environmental factors including the construction and operation periods.

4.1.2 Environmental factors, including natural and social environment, should the ambient air, surface water, groundwater, ocean, sound Environmental, soil, land/aquatic organisms, land use is identified.

4.1.3 Based on the investigation and analysis of regional environmental characteristics of construction projects on pollution characteristics, consideration should focus on construction projects may yield Health persistence and cumulative effects.

4.1.4 Environmental factors can be used to identify matrix, the matrix table, refer to Appendix A.

4.2 Assessment Screening factor

4.2.1 According to the environmental factors recognition result, project characteristics and the characteristics of sewage, pollution factor determining construction projects (cf.

To Appendix B), combined with the regional environmental characteristics, environmental screening of all elements of the evaluation factors.

4.2.2 should be explicitly given pollution evaluation factors, evaluation factors of environmental quality, environmental impact and total control predictors factor.

4.3 Rank

According HJ 2.1, HJ 2.2, HJ/T 2.3, HJ 2.4, HJ 610, HJ 19, the relevant provisions of HJ/T 169 of the separately determined Ambient air, surface water, acoustic environment, groundwater, ecology, environmental risk assessment rating.

4.4 Evaluation Scope and environmental protection objectives

According HJ 2.1, HJ 2.2, HJ/T 2.3, HJ 2.4, HJ 610, HJ 19, the relevant provisions of HJ/T 169 of the separately determined Ambient air, surface water, acoustic environment, groundwater, ecology, environmental risk assessment scope.

Description by environmental factors within the scope of the evaluation of environmental protection objectives, marked in the figure, and a list is given with the construction project boundary or distance relative position, characteristics and protection requirements of the production facilities.

4.5 Evaluation criteria to determine

According to the environmental function zoning 4.5.1 Assessment Scope various environmental factors, to determine the environmental quality standards adopted by each of the evaluation factors and Corresponding emission standards. For the location of the project is no clear environmental function zoning, which is subject to the implementation of standards projects Local environmental protection administrative department confirmed.

4.5.2 For national and local standards are not required pollutants, can refer to other domestic standards, foreign or international standards, and subject to the project site environmental protection department to confirm.

4.6 Special settings

Prepare an environmental impact report of the steel construction project, its thematic settings refer to Appendix C, according to the order and content with Body adjust.

5.1 Analysis of the main contents of the project

5.1.1 Project Overview

5.1.1.1 The main contents Describe the basic situation of the project construction unit, construction scale and nature of construction, site, project components, product solutions, General layout, covers an area of type, construction period, the main technical and economic indicators, indicating that the main raw materials, the basic situation of fuel, as well as water, electricity, transportation and other external conditions.

5.1.1.2 Technical Requirements

Project profile description should be comprehensive, clear, text or graphical form given below (Table dimension should use GB count Per unit, the figure shall be marked direction indicator, the wind rose, scale and legend and other basic information).

a) in accordance with the main project, aided engineering, public works, environmental engineering projects are given the composition of the list, with explicit table Major equipment name, quantity, specifications and ability contents.

1) main project. sinter/pellet, coking, iron making, steel making, rolling processing, ferroalloy smelting;

2) aided engineering. dock, raw material yard, lime and dolomite roasting facilities, oxygen station, compressor station, owned power plant Wait;

3) public works. for power distribution, water supply and drainage, gas, heat, warehousing, machine repair, inspection and analysis, general layout and transportation;

4) Environmental Engineering. The main dust removal, desulfurization and denitrification facilities, the whole plant sewage treatment plants, solid waste disposal and utilization Facilities.

b) Total floorplan diagram shall identify the main environmental engineering facility location.

c) the whole plant and the main technical and economic indicators of the step table, the table must be clear indicators of technology, raw material consumption indicators, energy consumption Content consumption indicators (process energy consumption, power consumption indicators, secondary energy recovery index), operating system.

d) The main raw materials, fuel type, consumption, source, mode of transport, the main component and containing toxic and hazardous substances Amount, together with the original main qualification units issued, a full fuel component test report.

5.1.2 Production process, pollution prevention and pollutant emissions

5.1.2.1 The main contents by step description of the production process, analyze pollution production processes and understanding of pollution prevention measures, accounting normal and abnormal operating conditions Pollution source intensity.

5.1.2.2 Technical Requirements

In the text accompanying the form given in the following chart.

a) The main material flow diagram should be given input and output material amount.

b) the balance shall be given for each step of the metal iron and other major metal elements balanced, clear inputs, outputs and the amount of material gold Metal content (%), the amount of metal, and metal gives the balance sheet.

c) the balance shall be given gas type of gas, gas volume, gas heat value and volume per unit of product produced, including outsourcing, external Pin gaseous fuel; clearly the various gas generation, usage, the amount of loss and the amount of emission, and gives the gas balance sheet.

d) poisonous and harmful elements balance.

1) sulfur balance. the process should be a clear input and output material and the amount of sulfur content (%), sulfur content, and gives sulfur Balance graphs, tables;

2) fluorine balance. should clear the input and output amount of material and fluorine content (%), the amount of fluorine and fluorine balance sheet transactions;

3) other toxic and harmful elements in balance. According to the original, full fuel component inspection report, to be carried out to determine the equilibrium analysis Element type, clear the input, output and the amount of hazardous material element content (%), number, and gives the balance sheet.

e) relates to the pickling process should balance each type of acid, acid-base balance should be clear inputs, the amount of regeneration, consumption, Loss and acid concentration, acid balance and gives diagrams, tables.

f) water balance should step and the whole plant were balanced, clear the total water consumption, net circulating water, turbid circulating water production Quantity of water, return water, the amount of loss and external displacement and the like. Coking process water balance should also consider the raw coal into the water and reaction product Into water. Each step is given water balance diagram, the whole plant water balance figures and tables.

g) production process and production analysis should include the main sewage node, auxiliary and environmental engineering, and production process are given Sewage node graph.

h) air pollution control measures analysis of emission sources should be organized to give the name of the step, the amount of smoke, the annual number of hours worked, Types of pollutants, pollution control measures, collection efficiency, purification efficiency, emission concentrations, emissions, chimney height, in the outlet Trails and flue gas temperature, fugitive emission source name, area (length × width), high source, types of pollutants, emissions. Given waste List of air pollution emissions, summary of total annual emissions of each step and the whole factory main exhaust pollutants.

i) waste water pollution control measures pollution analysis should be given the name of the process, the amount of waste water, the types of pollutants, resulting in a concentration, Wastewater treatment process, purification efficiency, water quality, water quantity and whereabouts. Given coking phenol cyanide wastewater, gas wet purification of waste water, Cold-water, the whole plant wastewater, sewage and other waste (sewage) water treatment systems and water treatment system flow chart, Out of the water quantity, water quality and destination. It gives the whole plant waste (sewage) water pollutant emissions list.

j) Analysis of solid waste generation and utilization of solid waste shall categories attribute gives the name of solid waste, generating source, Generation, factory staging methods and disposal measures, final disposal and use patterns, the amount of disposal, utilization and disposal volume rate.

Response comprehensive utilization of solid waste utilization is analyzed in detail, such as the project of solid waste utilization facilities, Storage sites and facilities, to address environmental impacts and pollution prevention measures at the facility will be briefly analyzed. Utilization of solid waste outside the Commission Disposal shall be accompanied by the trust agreement, the Commission use outside of hazardous waste disposal should provide proof of assigned units processing capacity (hazardous waste Business license, business license, etc.). Solid waste generation and utilization given list.

k) the noise source and Treatment Measures should step given noise source name, quantity, emission characteristics, a strong source control before, Control measures and their reduction amount and the like. Given a list of noise sources and their control measures.

l) non-normal condition analysis should contain pollutants aspects, causes, frequency, duration and occurrence of preventive measures, Given in tabular form abnormal condition emission sources, types of pollutants, emission concentrations and emissions.

5.1.3 Other requirements

Expansion and technological transformation projects involving existing project, should indicate the existing engineering (including stabling Engineering) Environmental Movies Impact assessment, environmental protection acceptance for fulfillment; relying on clear relationship with existing projects, analysis of existing projects Existing ring Environmental issues, propose measures "to bring new and old"; given the existing projects, the proposed project, "with a new band and old" project and project implementation After the change of the whole plant emissions of major pollutants.

When the expansion and technological transformation projects cause existing engineering products production changes, or cause an increase in emissions of pollutants when they Projects involving existing engineering analysis should refer to the implementation 5.1.2.

5.2 Engineering Analysis

Project planning, feasibility studies and design engineering design is based on data using mass balance, analogy, Measurement method and empirical formula of combining methods, conduct engineering analysis.

6.1 Analysis of Cleaner Production

6.1.1 Main content

Description of construction projects to take the case of cleaner production processes, technology and equipment. Determination of construction projects and cleaner production level Level. Expansion, technological transformation projects must comparing before and after its implementation of cleaner production index changes.

6.1.2 Technical Requirements

In accordance with the state's key industry clean production technology-oriented directory, iron and steel industry development policy, industrial restructuring Catalog Access conditions and other relevant requirements, sub-step description taken cleaner production processes, technology and equipment and so on.

Control HJ/T 126, HJ/T 318, HJ/T 426, HJ/T 427, HJ/T 428, HJ 470 and the "clean and hygienic steel industry Production evaluation index system "and other clean production standards, clear and clean production grade level they achieve. For the three and the following indicators should analyze the reasons and put forward reasonable and feasible corrective measures and recommendations. Workers clean production standards without making provisions Order shall be the same at home and abroad advanced production technology indicators compare and explain indicators sources.

6.2 Analysis of Circular Economy

6.2.1 Main content

Referring HJ 465, from the internal, regional and downstream industry chain resources and other aspects of analysis discussed construction projects, energy and comprehensive utilization of waste.

6.2.2 Technical Requirements

Item recycling measures taken, pathways and effects, identify the major metal recycling rate, with fresh produce Water reuse and water, heat, and pressure, the amount of recovered gas or utilization of solid waste comprehensive utilization, and the National Advanced indicators inside and outside the same production process were compared, and explain indicators sources. Suggest improvements and from the perspective of circular economy Suggest.

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