1, arsenic-containing wastewater treatment and technology

2. Treatment and technology of phenol-containing wastewater

3. Treatment and technology of fluorine-containing wastewater

4. Treatment and technology of wastewater containing methanol

5. Treatment and technology of wastewater containing ammonia nitrogen

6. Water treatment process of powdered activated carbon

7, pharmaceutical wastewater characteristics and treatment process

8, paper mill sewage characteristics and treatment technology

9. Characteristics and treatment technology of tannery wastewater

10 hospital sewage treatment technology

1 1, electroplating wastewater treatment technology

12, refinery sewage treatment technology

13, wastewater treatment and disposal technology of pesticide production units

14, brewery wastewater treatment and utilization technology

15, copper smelting wastewater treatment technology

16, heavy metal wastewater treatment technology in industrial production

17, characteristics of wastewater from nitrogen fertilizer plant and its treatment technology

18, characteristics of wastewater from phosphate fertilizer plant and its treatment technology

19, water treatment process and its characteristics

20. New water treatment technology and its application prospect

2 1, common processes and characteristics of nitrogen and phosphorus removal in water treatment

22. Present situation and development prospect of reclaimed water reuse in China.

23, aerobic treatment process and its adaptability.

24, anaerobic treatment process and its adaptability.

25, urban sewage treatment technology and application status.

26. Study on Treating Alcohol Wastewater by UASB Reactor

27.A/O process for treatment of nitrogen-containing chemical wastewater.

28. Research progress of nitrogen and phosphorus removal by SBR process

29. Present situation and development prospect of water treatment agents in China

30. Comprehensive treatment of medium and high concentration ammonia nitrogen wastewater

3 1, biological treatment technology of nitrogen and phosphorus removal from wastewater

32, the types of sedimentation tank and its application

33, ammonia nitrogen wastewater treatment technology status and development

34. Application status and development of oxidation ditch in oberth.

35. Application and research progress of biofilm reactor in sewage treatment

36, catering wastewater treatment method

37, the development and utilization of urban sewage resources and its countermeasures

38, particulate pollutants purification technology

39, the application status and research progress of mechanical dust collector.

40, the application status and research progress of filter dust collector

4 1, application status and research progress of electrostatic precipitator

42, the commonly used methods of gaseous pollutants purification and its adaptability research.

43, the research status and progress of SO2 purification technology in flue gas

44, nitrogen oxides flue gas purification technology research status and progress.

45, fluorine-containing waste gas purification technology research status and progress

46, the research status and progress of waste gas purification technology containing volatile organic compounds

47, thermal power plant nitrogen oxide treatment technology

48, automobile exhaust purification technology

49, solid waste landfill impact on the environment.

50. Municipal solid waste treatment process

5 1, domestic solid waste treatment process

52. Municipal solid waste incineration technology

53. Comprehensive utilization of fly ash in thermal power plants

54. Sanitary landfill treatment of urban garbage

55. Biogas treatment of organic solid waste

56. Recycling of urban garbage

57, urban sewage sludge treatment and disposal

58, urban sewage sludge disposal and resource utilization

59. Treatment and disposal of rural domestic garbage

60. Classified collection and treatment of municipal solid waste

6 1, industrial solid waste treatment and disposal

62, agricultural solid waste treatment and disposal

63, the composition of municipal solid waste and treatment countermeasures

64. The present situation and development prospect of municipal solid waste recycling in China.

65. Overview of existing environmental management system in China.

66. Overview of existing natural resources and environmental management in China.

67. Overview of existing regional environmental management in China.

68. Common methods and characteristics of water environmental quality assessment.

69, air environmental quality evaluation method and its characteristics.

70, the new method of water quality evaluation and its application.

7 1. A new air quality assessment method and its application

72, the environmental impact of township industry on rural areas (surrounding)

73. Problems that should be paid attention to in accelerating urbanization.

74. Present situation and countermeasures of water quality of five major freshwater lakes in China.

75, China's seven major river water quality status and control countermeasures.

76. The present situation of water quality in Harbin section of Songhua River and its control countermeasures

77. Harbin air quality status and control countermeasures

Advantages and disadvantages of China's western development

79. Environmental protection, sustainable development and government policies

80. Causes and Countermeasures of Lake Eutrophication