RCRAAIRNPDES CROSSCUTTING ISSUES - PowerPoint PPT Presentation

Title: RCRAAIRNPDES CROSSCUTTING ISSUES


1
RCRA/AIR/NPDES CROSS-CUTTING ISSUES

• David Duster
• Jake Medellin
• EPA Region 6

2
RCRA/NPDES Interactions

• Sludges
• Wastewater Treatment Exemption
• Surface Impoundments
• Drum Storage
• Spills

3
Resource Conservation Recovery Act

• Commonly known referred to as RCRA
• Nation's primary law governing the disposal of
  solid and hazardous waste.
• Congress passed RCRA on October 21, 1976

4
Definition of Solid Waste

• Any discarded material that is abandoned,
  recycled, inherently waste-like or a military
  ammunition.

5
Is Wastewater a Solid Waste?

• YES

6
What is Hazardous Waste

• Displaying ignitable, corrosive, reactive or
  toxic characteristics.
• Listed based on source or commercial chemical
  product.

7
Generation of Hazardous Waste at Wastewater
Treatment Plant

• Sludge resulting from wastewater treatment must
  be handled as a RCRA waste if hazardous.
• Sludges derived from treatment of listed waste
  are still classified as hazardous due to the
  listing.

8
(No Transcript)
9
Wastewater Exemption

• WWT Unit Is Exempt From Part 270 Permit
  Requirements and Subpart J Tank Requirements
• Discharge Limits Based On NPDES or Pretreatment
  Limits

10
Definition of Wastewater Treatment Unit

• Part of a Wastewater Treatment facility Subject
  to Regulation Under Sections 307 or 402 of the
  CWA
• Receive and Treat or Store Hazardous Influent
  Wastewater, or Generate and Accumulate a
  Hazardous Wastewater treatment Sludge
• AND!!! Meet the EPA Definition of a Tank

11
Definition of a Tank

• Stationary Device
• Designed to Contain an Accumulation of Hazardous
  Waste
• Constructed of Non-Earthen Materials
• Provide Structural Support (Parking Lot Test)

12
(No Transcript)
13
(No Transcript)
14
(No Transcript)
15
(No Transcript)
16
Surface Impoundments

• Topographical depression designed to hold liquid
  waste.
• Surface impoundments that receive hazardous waste
  must be RCRA permitted.
• Parking lot test.

17
(No Transcript)
18
(No Transcript)
19
(No Transcript)
20
(No Transcript)
21
(No Transcript)
22
Drum Storage

• Hazardous Waste Stored in Containers Must Be
• Closed
• Labeled with the words Hazardous Waste
• Good Condition
• Not Leaking
• Inspected on a Weekly Basis

23
(No Transcript)
24
(No Transcript)
25
Release of Hazardous Constituents

• RCRA 7003 Regulatory Authority To Address
  Potential Endangerments Caused By Spills or
  Releases From Wastewater Treatment Process.

26
(No Transcript)
27
(No Transcript)
28
(No Transcript)
29
Air/NPDES Crosscutting Issues

• Joaquin (Jake) Medellin Jr.
• EPA Region 6
• Houston Office

30
Air/NPDES Interactions

• Chemical Plants (Vinyl Chloride, Benzene,
  Synthetic Organic Chemicals Production)
• Wastewater Treatment
• Refineries
• Wastewater Treatment
• Drain Hubs, Oil/Water Separators, Dissolved Air
  Flotation (DAF) Devices, Storage Vessels/Transfer
  Operations

31
Air Requirements For WW Treatment at Chemical
Plants and Refineries

• Vinyl Chloride (NESHAP Part 61 Subpart F).
• Control and Treat Process WW To Less than 10 ppm
  Vinyl Chloride Prior To Treatment at WW Plant.
• Refineries and Benzene (NESHAP Part 61, Subpart
  FF and NSPS Part 60 Subpart QQQ).
• Control and Treat Process WW To Less than 10 ppm
  Benzene Prior To Treatment at WW Plant.

32
Air Requirements for Hazardous Organic NESHAPs
(HON)

• 40 CFR Part 63, Subpart G for Synthetic Organic
  Chemical Manufacturing Industry (SOCMI).
• Regulates Process Vent Streams, Storage Vessels,
  Transfer Operations and WASTEWATER.
• Control and Treat to 98 Reduction or 20 ppmv.

33
Methods Of Control

• WW Conveyance, Storage, and Treatment Devices
  Closed to the Atmosphere.
• Carbon Canisters Connected to Process WW.
• Water Seal Control, P-traps.
• Closed Vent Systems, Vent Air Emission Control
  Device such as Flare, Thermal Oxidation Unit, or
  Carbon Absorption Unit.

34
Methods of Treatment

• Air Stripping
• Steam Stripping
• Carbon Absorption
• Thin-Film Evaporation Unit
• Biological Treatment
• Waste Incineration

35
(No Transcript)
36
(No Transcript)
37
(No Transcript)
38
API/CPI Separator

• Fixed Roof, No Gaps
• Roof Openings Must Be Gasketed and Closed
• If capacity is over 250 gpm, closed vent system
  and control device with greater 95 efficiency
• No Detectable Emissions

39
(No Transcript)
40
(No Transcript)
41
(No Transcript)
42
Process Drain Requirements

• Drains must have water seal controls (P-traps)
• No Detectable Emissions
• Inspect Drain Levels and VOC emissions Monthly
• Inspect Plugs or caps over Drains.

43
Dissolved Air Flotation Requirements

• Fixed Roof, No Gaps
• Roof Openings Must be Gasketed and Closed.
• If Capacity is Over 250 gpm, closed vent system
  and control device greater than 95 efficiency.
• No Detectable Emissions

44
(No Transcript)
45
(No Transcript)
46
(No Transcript)
47
(No Transcript)
48
(No Transcript)
49
(No Transcript)
50
(No Transcript)
51
(No Transcript)
52
(No Transcript)
53
(No Transcript)
54
(No Transcript)