Evidence map›Paper›PMID 32516457›Full record

ArticleWater environment research : a research publication of the Water Environment Federation2021

Optimal design of an electrochemical reactor for blackwater treatment.

Siva Varigala, Srinivas Krishnaswamy, Chandra P Lohia, Meghan Hegarty-Craver, Sonia Grego, Michael Luettgen, Clement A Cid

Open access · hybridAbstract read
In one paragraph

Article in Water environment research : a research publication of the Water Environment Federation, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.7field-weighted citation impact, top 28% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 5 institutions in 3 countries.

Siva VarigalaDepartment of Chemical Engineering, BITS Pilani K K Birla Goa Campus, Goa, India.
Srinivas KrishnaswamyDepartment of Chemical Engineering, BITS Pilani K K Birla Goa Campus, Goa, India.
Chandra P LohiaITC-Kohler Co., Pune, India.
Meghan Hegarty-CraverRTI International, Research Triangle Park, NC, USA.
Sonia GregoRTI International, Research Triangle Park, NC, USA.
Michael LuettgenKohler Co., Kohler, WI, USA.
Clement A CidCalifornia Institute of Technology, Pasadena, CA, USA.ORCID https://orcid.org/0000-0002-7293-035X
Kohler (New Zealand) · NZBirla Institute of Technology and Science, Pilani - Goa Campus · INCalifornia Institute of Technology · USDuke University · USRTI International · US

Funding

Bill and Melinda Gates Foundation ID 43951Bill and Melinda Gates Foundation OPP1170650Bill and Melinda Gates Foundation OPP1192374
6 · The paper itself

Abstract

Electrolysis of blackwater for disinfection and nutrient removal is a portable and scalable technology that can lessen the need for cities to construct large-scale wastewater treatment infrastructure and enable the safe onsite reuse of blackwater. Several systems for treating wastewater from single toilets are described in the literature, but there are few examples of systems designed to use electrolysis to treat blackwater from nearby toilets, which is a situation more common in densely packed urban living environments. In order to scale a single toilet electrolysis system to one that could service multiple toilets, computational fluid dynamic analysis was used to optimize the electrochemical reactor design, and laboratory and field-testing were used to confirm results. Design efforts included optimization of the reactor shape and mixing to improve treatment efficiency, as well as automated cleaning and salt injection to reduce maintenance and service requirements. PRACTITIONER POINTS: Design of a reverse polarity mechanism to enable in situ electrode cleaning and improve long-term electrode performance. Optimization of a hopper design and drainpipe location to collect and remove flaking precipitates and mitigate maintenance issues. Design of an automated salt injection system to guarantee sufficient chloride levels for producing adequate chlorine residuals for consistent disinfection.

Indexed as

Waste Disposal, FluidWastewaterCitiesDisinfectionElectrolysisWastewaterblackwater treatmentelectrode cleaningmineral depositsreverse polarityuniform mixing

Identifiers

PMID32516457
PMCPMC7818490
OpenAlexW3034079234

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.