Wastewater Co-digestion and Biogas-to-grid Performance Indicators

b3mq-yvvrEnvironment8 columns

This dataset contains monthly performance indicators for Wastewater Resource Recovery Facilities (WRRFs) that operate co-digestion and biogas-to-grid programs. The New York City Department of Environmental Protection (DEP) treats the solid component of the City’s wastewater using anaerobic digestion. This biological process produces biosolids, which can be used as fertilizer, and biogas, a renewable energy source. Co-digestion is the process of digesting food scraps alongside sewage sludge. The biogas generated is used on-site in boilers to heat the digesters and provide space heating. Excess biogas undergoes biogas-to-grid treatment, where it is purified and upgraded to renewable natural gas (RNG). Following purification, the RNG is exported to the natural gas pipeline as a direct replacement to fossil fuels. Excess biogas is flared during temporary system outages of the biogas cleaning system due to maintenance, operational constraints, or emergency events. The co-digestion and biogas-to-grid program provides a local recycling outlet for food scraps, transforming waste into renewable energy. Together, they reduce greenhouse gas emissions by replacing a portion of fossil natural gas with RNG and avoiding the methane emissions that would occur if the food scraps were disposed of in a landfill. For more information visit: https://www.nyc.gov/site/dep/whats-new/resource-recovery.page

View on NYC Open Data

Quality

B89.9 / 100

From a 38-row sample across 8 columns.

completeness100/ 25% weight

consistency63/ 20% weight

accuracy95/ 20% weight

timeliness96/ 15% weight

usability95/ 20% weight

Related datasets

Dewatered Solids and Biosolids Allocations per Biosolids Management Practice Site0.34
joins onyear
NYCDEP Citywide Catch Basins0.33
Water and Sewer Permits0.31
Watershed Water Quality - Keypoint0.30
Watershed Water Quality - Limnology0.29
Watershed Water Quality - Hydrology0.29
Local Law 84 Monthly Data (Calendar Year)0.29

Sample rows

facility	year	month	sludge_digested_wet_tons	food_scraps_digested_wet	rng_production_mmbtu	rng_system_uptime	flared_biogas_mscf
Newtown Creek	2023	April	62389	6125	15805	0.78	11938
Newtown Creek	2023	May	64188	6702	12272	0.52	13970

Columns

9 queryable · 9 profiled

The machine field names SoQL needs, with the publisher's own description of each.

Field	Type	Description	Null	Values
`facility`	text	The name of the Wastewater Resource Recovery Facility	0%	`Newtown Creek`of 1
`year`	categorical	The year the data was collected.	0%	`202420252023`of 4
`month`	categorical	The month the data was collected.	0%	`AprilMayMarch`of 12
`sludge_digested_wet_tons`	integer	Provides the volume of wastewater sludge digested per month at Newtown Creek WRRF. Wet tons include the total weight of solids and water in the material.	0%	`6265472141`

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