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Process Data set: [CicloData] (1)| tap water production, conventional treatment, Maipo | tap water | Cutoff, U (en) en

Key Data Set Information
Location CL
Geographical representativeness description Extrapolated from data from one conventional treatment plant in Brazil. The uncertainty was adjusted accordingly.
Reference year 2015
Name
[CicloData] (1)| tap water production, conventional treatment, Maipo | tap water | Cutoff, U
Classification
Class name : Hierarchy level
  • ILCD: #ECOED / #CICLODATA / Agua / Agua potable
General comment on data set ecoQuery: https://ecoquery.ecoinvent.org/3.10/cutoff/dataset/20430/documentation This dataset represents production of 1 kg of tap water under pressure at facility gate, ready for distribution in network. It represents average operation of conventional treatment for production tap water. Conventional treatment includes coagulation and decantation, filtration and disinfection. Other treatment such as oxidation (ultraviolet radiation, ozone) and other adjustment (pH, alkalinity, etc.) can be present in some plant. Inventory was constructed from reported chemicals and energy inputs from a typical conventional treatment plant in Brazil. This activity starts from tap water, under pressure, at tap water treatment plant and fed into tap water distribution network. This dataset ends with the production of tap water, at facility gate, under pressure. It includes energy for intake pumping and treatment system, as well as the energy of the pump pressurizing water to the beginning of the network. It includes all chemicals and material added to the water during treatment. It excludes energy for pumping stations and water losses within the network as they are included in the tap water market. Emissions to the environment occurring during the treatment and during the distribution were not considered as they are assumed negligible. Main substance in water that would be released in the environment are assumed to be considered in wastewater processes.
Copyright Yes
Quantitative reference
Reference flow(s)
Time representativeness
Data set valid until 2023
Time representativeness description The time period is set from 2015 to the year 2017 as it is a considering period in which the electricity mix in conventional treatment plants have not passed through drastic changes.
Technological representativeness
Technology description including background system Most Frequent technology in tap water production facility in Brazil
LCI method and allocation
Type of data set Unit process, black box
LCI Method Principle Other
Data sources, treatment and representativeness
Data treatment and extrapolations principles From one conventional tap water production facilities in Feira de Santana, a city in Bahia, Brazil, to all conventional facility in Brazil. Conventional treatment accounts for 90.8% of the total produced tap water in Brazil. Data was used for regionalizing the chemiclas and energy consumption, the remaining exchanges were copied from the global dataset.The uncertainty has been changed accordingly.
Sampling procedure Based on data from 1 local conventional treatment plant, representing 0.2% of the total produced tap water in Brazil. Conventional tap production facilities were regionalized in accordance to this treatment plant, which is located in Feira de Santana a city in Bahia, Brazil ( Guanais, A.L.R.; Cohim, E.B.; Medeiros, D.L., 2017). Data was taken from a particular study: Avaliação energética de um sistema integrado de abastecimento de água. ( Retrieved from: <http://www.scielo.br/pdf/esa/2017nahead/1809-4457-esa-s1413-41522017146180.pdf > pg.1191)
Completeness
Completeness of product model No statement
Data generator
Data set generator / modeller
Data entry by
Time stamp (last saved) 2024-10-18T12:53:30.723000-03:00
Data set format(s)
Data entry by
Publication and ownership
UUID 92187aff-4b70-48b5-a0c9-e490a4ffbf0a
Date of last revision 2024-10-16T23:31:37.391000-03:00
Data set version 00.00.018
Unchanged re-publication of
Copyright Yes

Inputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Product flow
C:Manufacturing / 20:Manufacture of chemicals and chemical products / 201:Manufacture of basic chemicals, fertilizers and nitrogen compounds, plastics / 2011:Manufacture of basic chemicals RoW 7.55E-5 kg7.55E-5 kg
General comment Measured value. Value reprensents average for use of aluminium sulfate in a typical conventional treatment plant in Brazil - according to Guanais, A.L.R.; Cohim, E.B.; Medeiros, D.L report " Avaliação energética de um sistema integrado de abastecimento de água": [ retrieved from ; http://www.scielo.br/pdf/esa/2017nahead/1809-4457-esa-s1413-41522017146180.pdf pg. 1191 ]
Product flow
D:Electricity, gas, steam and air conditioning supply / 35:Electricity, gas, steam and air conditioning supply / 351:Electric power generation, transmission and distribution / 3510:Electric power generation, transmission and distribution CL 6.08832E-4 MJ6.08832E-4 MJ
General comment Measured value. Value reprensents average for use of electricity in a typical conventional treatment plant in Brazil - according to Guanais, A.L.R.; Cohim, E.B.; Medeiros, D.L report " Avaliação energética de um sistema integrado de abastecimento de água": [ retrieved from ; http://www.scielo.br/pdf/esa/2017nahead/1809-4457-esa-s1413-41522017146180.pdf pg. 1191 ]
Product flow
C:Manufacturing / 20:Manufacture of chemicals and chemical products / 201:Manufacture of basic chemicals, fertilizers and nitrogen compounds, plastics / 2012:Manufacture of fertilizers and nitrogen compounds GLO 8.65E-6 kg8.65E-6 kg
General comment Measured value. Value reprensents average for use of fluosilicic acid in a typical conventional treatment plant in Brazil - according to Guanais, A.L.R.; Cohim, E.B.; Medeiros, D.L report " Avaliação energética de um sistema integrado de abastecimento de água": [ retrieved from ; http://www.scielo.br/pdf/esa/2017nahead/1809-4457-esa-s1413-41522017146180.pdf pg. 1191 ]
Product flow
D:Electricity, gas, steam and air conditioning supply / 35:Electricity, gas, steam and air conditioning supply / 351:Electric power generation, transmission and distribution / 3510:Electric power generation, transmission and distribution RoW 1.7849799E-4 MJ1.7849799E-4 MJ
General comment Calculated value.This mathematical function was taken from the "tap water production, conventional treatment, GLO" dataset (accessed 20170920) as it was considered adequate also for this dataset.
Product flow
B:Mining and quarrying / 08:Other mining and quarrying / 081:Quarrying of stone, sand and clay / 0810:Quarrying of stone, sand and clay GLO 1.49834E-6 kg1.49834E-6 kg
General comment Calculated value taken from the "tap water production, conventional treatment, GLO" dataset (accessed 20170920) as it was considered adequate also for this dataset. Amount of sand to compensate losses through sand filter washing. Extrapolated to all plant from one reported value. Also includes average use of micro-sand for adjustment for this technology. Note that only 1 of the 9 conventional plants reported using micro-sand. Plants not reporting this consumable were attributed an input value of 0 during the calculation of the weighted average.
Product flow
E:Water supply; sewerage, waste management and remediation activities / 36:Water collection, treatment and supply / 360:Water collection, treatment and supply / 3600:Water collection, treatment and supply CL 2.1E-5 kg2.1E-5 kg
General comment Calculated value taken from the "tap water production, conventional treatment, GLO" dataset (accessed 20170920) as it was considered adequate also for this dataset. Water content of hypochlorite solution, prehydrolysed coagulant and aluminium sulfate.
Product flow
A:Agriculture, forestry and fishing / 01:Crop and animal production, hunting and related service activities / 016:Support activities to agriculture and post-harvest crop activities / 0161:Support activities for crop production RoW 1.5967010304E-5 MJ1.5967010304E-5 MJ
General comment Calculated value.This mathematical function was taken from the "tap water production, conventional treatment, GLO" dataset (accessed 20170920) as it was considered adequate also for this dataset.
Product flow
F:Construction / 42:Civil engineering / 422:Construction of utility projects / 4220:Construction of utility projects RoW 1.52102821507339E-12 Item(s)1.52102821507339E-12 Item(s)
General comment Calculated value taken from the "tap water production, conventional treatment, GLO" dataset (accessed 20170920) as it was considered adequate also for this dataset. Amount of water works construction attributed to the production of 1kg of tap water. Value is based on assumed lifetime production of water treatment plant and an assumed typical medium-sized plant of 30,000 m3/day.
Elementary flow Resources / Resources from water / Renewable material resources from water CL 8.838245934E-5 m38.838245934E-5 m3
Elementary flow Resources / Resources from water / Renewable material resources from water CL 9.4424354066E-4 m39.4424354066E-4 m3
Product flow
C:Manufacturing / 20:Manufacture of chemicals and chemical products / 201:Manufacture of basic chemicals, fertilizers and nitrogen compounds, plastics / 2011:Manufacture of basic chemicals RoW 4.21E-7 kg4.21E-7 kg
General comment Measured value. Average use of hypochlorite (dry basis) for disinfection in surveyed conventional treatment plants. Reported concentration of solution is 12% (w/w), input of exchange "water" was added accordingly. Note than only 2 of the 9 conventional plants reported using this substance. Plants not reporting this consumable were attributed an input value of 0 during the calculation of the weighted average.
Product flow
C:Manufacturing / 20:Manufacture of chemicals and chemical products / 201:Manufacture of basic chemicals, fertilizers and nitrogen compounds, plastics / 2011:Manufacture of basic chemicals GLO 9.73E-7 kg9.73E-7 kg
General comment Measured value. Value represents average for use of polyacrylamide in the production of flocculants for the clarification of water based on Colombian LCA reports/written communication [(Orlando, Rodriguez, Villamizar-gallardo, & García, 2016), (Varón Hoyos, 2015) , (EPM, 2016)]. Note that 5 of the 6 conventional plants reported using this substance. Plants not reporting this consumable were attributed an input of 0 during the calculation of the weighted average. This avoided double functional equivalent chemical inputs.

Outputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Product flow E:Water supply; sewerage, waste management and remediation activities / 36:Water collection, treatment and supply / 360:Water collection, treatment and supply / 3600:Water collection, treatment and supply CL 1.0 kg1.0 kg
Waste flow
E:Water supply; sewerage, waste management and remediation activities / 37:Sewerage / 370:Sewerage / 3700:Sewerage RoW 3.2626E-5 m33.2626E-5 m3
General comment Measured value. This value was taken from the "tap water production, conventional treatment, GLO" dataset (accessed 20170920) as it was considered adequate also for this dataset. It represents the average amount of wastewater produced during treatment.