Environmental Remediation Services Workers Green occupation

How to become a Wastewater Treatment Operator

Official Chinese title (2022 occupational classification): 污水处理工

Also called: Town Sewage Treatment Worker, Sludge Treatment Worker

Runs and maintains town sewage and sludge treatment plants, tests how well treatment is working, and records daily operations.

Main tasks

Running and maintaining town sewage and stormwater treatment equipment to clean wastewater and make it reusable
Running and maintaining sludge treatment equipment to make sludge harmless and reuse it
Filling in operating records and filing them

Ways in

Vocational majors: Secondary vocational school (中职) major: Environmental Remediation Technology (620802). Vocational major 620802 Environmental Remediation Technology (环境治理技术), 3 years. The Ministry of Education's 2022 major profiles list this occupation among those the major prepares students for (职业面向). Example certificates: Wastewater Treatment; Water Environment Monitoring and Treatment; Smart Water Plant Operation and Control.; Secondary vocational school (中职) major: Intelligent Water Environment Monitoring and Protection (650402). Vocational major 650402 Intelligent Water Environment Monitoring and Protection (水环境智能监测与保护), 3 years. The Ministry of Education's 2022 major profiles list this occupation among those the major prepares students for (职业面向). Example certificates: Wastewater Treatment; Smart Water Plant Operation and Control; Water Environment Monitoring and Treatment; Surface Water Quality Monitoring (rivers, lakes, reservoirs and bays).

Pay · AI and this job

Median pay in China: CN¥40,700 a year (2025).
Middle half: CN¥31,600 to CN¥54,000. One in ten earn less than CN¥26,600 and one in ten more than CN¥74,300.
This is the figure for the mid group Water Conservancy, Environment and Public Facilities Management Workers, not for this job alone.
National figure: wage prices of enterprise employees from the Ministry of Human Resources and Social Security (MOHRSS) enterprise pay survey. The public sector and the self-employed are not covered.
Guangzhou only: median CN¥81,866 a year (2025), middle half CN¥66,410 to CN¥115,412.
Generative AI can do relatively little of this work, by the ILO's global estimate.

Who does this work

The census group Water Conservancy, Environment and Public Facilities Management Workers holds 1.64% of everyone employed in China; 60.8% of its workers are women (2020 Census).
7.9% are under 35, 53% are 35 to 54 and 39.1% are 55 or older. The middle age band is 50 to 54.
Census figures for the whole mid group (2020 long-form sample), not for this job alone.

Questions people ask

How do I become a Wastewater Treatment Operator?

Ways in include: Secondary vocational school (中职) major: Environmental Remediation Technology (620802); Secondary vocational school (中职) major: Intelligent Water Environment Monitoring and Protection (650402).

How much does a Wastewater Treatment Operator earn in China?

Across China, the median pay of enterprise employees is CN¥40,700 a year (Ministry of Human Resources and Social Security (MOHRSS), 2025). The public sector and the self-employed are not covered. It is the figure for the mid group Water Conservancy, Environment and Public Facilities Management Workers. In Guangzhou alone it is CN¥81,866 a year (2025).

Will AI change the work of a Wastewater Treatment Operator?

Generative AI can do relatively little of this work, by the ILO's global estimate.

Sources

Ministry of Human Resources and Social Security (MOHRSS): 2025 enterprise pay survey information: wage prices of enterprise employees by occupation mid group, and digital occupations (P10 to P90 annual CNY) (2025 (published 2026-07-08)), retrieved 5 October 2026
Guangzhou Human Resources and Social Security Bureau: Guangzhou 2025 labour market wage prices (P10 to P90 annual CNY by occupation) (2025 (enterprise pay survey)), retrieved 4 October 2026
National Bureau of Statistics of China: China Population Census Yearbook 2020, long-form tables 4-6 and 4-7 (employed by occupation mid group, sex, age) (2020 Census long form (10% sample)), retrieved 4 October 2026
International Labour Organization, Generative AI and Jobs: A Refined Global Index of Occupational Exposure (ILO Working Paper 140, Gmyrek et al.) (ILO Working Paper 140, May 2025, Annex Table A1), CC BY 4.0, retrieved 4 October 2026
Ministry of Human Resources and Social Security, State Administration for Market Regulation, National Bureau of Statistics: Occupational Classification of the People's Republic of China, 2022 edition (public consultation draft) (2022 public consultation draft (1,636 occupations; final edition 1,639)), retrieved 4 October 2026

Sources: Occupational Classification of the People's Republic of China (2022 edition, public consultation draft), Ministry of Human Resources and Social Security, State Administration for Market Regulation and National Bureau of Statistics; Ministry of Human Resources and Social Security, 2025 enterprise pay survey information; Guangzhou Human Resources and Social Security Bureau, 2025 labour market wage prices; National Bureau of Statistics of China (www.stats.gov.cn), 2020 Population Census yearbook; Ministry of Education, vocational education major profiles (2022 revision) and undergraduate major catalogue (2025); Ministry of Human Resources and Social Security, national vocational qualifications catalogue (2021); O*NET interest scores (CC BY 4.0); ILO global generative AI exposure index (CC BY 4.0). Figures processed by Peernovo. English text, translations and the matching of occupations to ISCO-08, majors, degree fields and qualifications by Peernovo.

Descriptions and tasks are Peernovo's own words, written from the facts in the Occupational Classification of the People's Republic of China (2022 edition). Job titles and work types are the classification's own.

Updated 5 October 2026