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Regulation on Industrial Regulation on Industrial Discharge to Public Discharge to Public SewerSewer
Kinji YAMADAKinji YAMADAJSWAJSWA
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ObjectiveObjective• Protection of structural integrity &
drainage performance of public sewer
• Permit compliance of effluent from WWTP to Water Pollution Control Law
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Demarcation of regulationDemarcation of regulation
Factory
WWTP.
Sewer(ex, chemical effect)
Responsibility of wastewater utility
Effluent(ex, negative impact)
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RegulatesRegulates forfor factoriesfactoriesWater pollution control law and
Sewage law
1.Notification
2.Pretreatment to meet discharge permit to sewer
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RegulatesRegulates forfor factoriesfactoriesNotification Type of designated factories Installation of pretreatment Water quality control administrator Emergency Reporting
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TypesTypes ofof designateddesignated factoriesfactories
Designation in WPCL mining, livestock, drink food production laundry, paper industry, fertilizer manufacture organic-chemical industry, petrochemical-
industry, leather business, metal working industry, plating industry
WTP, WWTP, Solid waste disposal
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Registration as designated factories
Registration by pretreatment
Designatedfactories
Undesignatedfactories
NotificationsNotifications
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Discharge permit to public sewerDischarge permit to public sewer
• Discharge quality need to comply to permit stimulated by sewage law and local ordinance
• If violation is expected, installation of pretreatment facility mandatory at factories
• If violations are found, warning letters are issued before penalty.
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42 Quality parameters for permit42 Quality parameters for permit
Classification Substance
Heavy metals Cd Pb As Hg Cr Cu Zn Fe, etc
Organics DXN PCB TCE PCE, etc
Inorganics CN F B, etc
general BOD n-hex SS N P pH Temp, etc
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Monitoring and supervisionMonitoring and supervision
• Among registered factories, inspection priority is given to factories using harmful substances.
• If violation found, instruction given for correction
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Record of Monitoring & Record of Monitoring & Supervision in Tokyo, 2011Supervision in Tokyo, 2011
Notification 8,770
Inspection 5,982
Sampling 2,985
Warning letters 387
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Certificated water quality control Certificated water quality control administratoradministrator
Improve self-control of factories Awareness Technology Leading to better factory discharge quality
Certification by seminar attendance Nationally certification pollution control
administrator
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Afterword
• This presentation was made to visitors from St. Petersburg.
• The content is based on the author’s work experience at Tokyo Metropolitan Gov. and its publication.
• For more information, email [email protected]