Document ID: chunk:federal_register_of_legislation:F2024C00833:reg:3:p2
Version: federal_register_of_legislation:F2024C00833
Segment Type: reg
Provision Reference: reg 3 (pt 2/5)
Character Range: 746260–749209

3—emissions of nitrous oxide released from wastewater handling (domestic and commercial)

5.36  Method 3—nitrous oxide released from wastewater handling (domestic and commercial)
 (1) For subparagraph 5.24(1)(b)(iii) and subject to subsection (2), method 3 is the same as method 2 under section 5.32.
 (2) In applying method 2 under section 5.32, the wastewater must be sampled in accordance with AS/NZS 5667.10:1998 or an equivalent Australian or international standard.
 (3) In applying method 2 under section 5.32, the sludge must be sampled in accordance with ISO 5667‑13:1997 or an equivalent Australian or international standard.

Division 5.3.8—Wastewater handling (domestic and commercial)—Flaring

5.37  Method 1—Flaring of methane in sludge biogas from wastewater handling (domestic and commercial)
 (1) For subparagraph 5.24(1)(c)(i), method 1 is:

where
Ej flared is the emissions of gas type (j) released from the plant from flaring of the methane in sludge biogas from the plant during the year measured in CO2‑e tonnes.
Qflared is the quantity of methane in sludge biogas flared from the plant during the year measured in cubic metres in accordance with Division 2.3.6.
ECi is the energy content factor of methane in sludge biogas in gigajoules per cubic metre (see Schedule 1).
EFij is the relevant emission factor for gas type (j) for methane in sludge biogas measured in CO2‑e per gigajoule (see Schedule 1).
 (2) For Qflared in subsection (1), the methane in sludge biogas is taken to constitute 70% of the sludge biogas.

5.38  Method 2—flaring of methane in sludge biogas
 (1) For subparagraph 5.24(1)(c)(ii) and subject to this section, method 2 is the same as method 1 under section 5.37.
 (2) In applying method 1 under section 5.37, Qflared must be determined in accordance with the sampling and analysis requirements in Subdivision 2.3.3.2 and the measuring requirements in Division 2.3.6.

5.39  Method 3—flaring of methane in sludge biogas
 (1) For subparagraph 5.24(1)(c)(iii) and subject to this section, method 3 is the same as method 1 under section 5.37.
 (2) In applying method 1 under section 5.37, Qflared must be determined in accordance with the sampling and analysis requirements in Division 2.3.4 and the measuring requirements in Division 2.3.6.

Part 5.4—Wastewater handling (industrial)

Division 5.4.1—Preliminary

5.40  Application
 (1) This Part applies to emissions released from the decomposition of organic material and the flaring of sludge biogas, resulting from the handling of industrial wastewater through treatment in wastewater collection and treatment systems.
 (2) In this section, industrial wastewater means liquid wastes and sludge resulting from the production of a commodity, by an industry, mentioned in column 1 of an item of the table in subsection 5.42(8).

5.41  Available methods
 (1) Subject to section 1.18 one of the following methods must be used for estimating emissions of