Shewhart's control charts and process capability ratio applied to a sewage treatment station
The current study used statistical methods of quality control to evaluate the performance of a sewage treatment station. The concerned station is located in Cascavel city, Paraná State. The evaluated parameters were hydrogenionic potential, settleable solids, total suspended solids, chemical oxygen...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Engenharia Agrícola
2014-08-01
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| Series: | Engenharia Agrícola |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000400016&tlng=en |
| _version_ | 1831701814563569664 |
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| author | Fábio Orssatto Marcio A. Vilas Boas Ricardo Nagamine Miguel A. Uribe-Opazo |
| author_facet | Fábio Orssatto Marcio A. Vilas Boas Ricardo Nagamine Miguel A. Uribe-Opazo |
| author_sort | Fábio Orssatto |
| collection | DOAJ |
| description | The current study used statistical methods of quality control to evaluate the performance of a sewage treatment station. The concerned station is located in Cascavel city, Paraná State. The evaluated parameters were hydrogenionic potential, settleable solids, total suspended solids, chemical oxygen demand and biochemical oxygen demand in five days. Statistical analysis was performed through Shewhart control charts and process capability ratio. According to Shewhart charts, only the BOD(5.20) variable was under statistical control. Through capability ratios, we observed that except for pH the sewage treatment station is not capable to produce effluents under characteristics that fulfill specifications or standard launching required by environmental legislation. |
| first_indexed | 2024-12-20T15:09:57Z |
| format | Article |
| id | doaj.art-85502a8258624a339cf8cd14f84e44d7 |
| institution | Directory Open Access Journal |
| issn | 0100-6916 |
| language | English |
| last_indexed | 2024-12-20T15:09:57Z |
| publishDate | 2014-08-01 |
| publisher | Sociedade Brasileira de Engenharia Agrícola |
| record_format | Article |
| series | Engenharia Agrícola |
| spelling | doaj.art-85502a8258624a339cf8cd14f84e44d72022-12-21T19:36:22ZengSociedade Brasileira de Engenharia AgrícolaEngenharia Agrícola0100-69162014-08-0134477077910.1590/S0100-69162014000400016Shewhart's control charts and process capability ratio applied to a sewage treatment stationFábio Orssatto0Marcio A. Vilas Boas1Ricardo Nagamine2Miguel A. Uribe-Opazo3UTFPRUNIOESTEUTFPRUNIOESTEThe current study used statistical methods of quality control to evaluate the performance of a sewage treatment station. The concerned station is located in Cascavel city, Paraná State. The evaluated parameters were hydrogenionic potential, settleable solids, total suspended solids, chemical oxygen demand and biochemical oxygen demand in five days. Statistical analysis was performed through Shewhart control charts and process capability ratio. According to Shewhart charts, only the BOD(5.20) variable was under statistical control. Through capability ratios, we observed that except for pH the sewage treatment station is not capable to produce effluents under characteristics that fulfill specifications or standard launching required by environmental legislation.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000400016&tlng=enSTSSewageProcess CapabilityShewhart Control Chart |
| spellingShingle | Fábio Orssatto Marcio A. Vilas Boas Ricardo Nagamine Miguel A. Uribe-Opazo Shewhart's control charts and process capability ratio applied to a sewage treatment station Engenharia Agrícola STS Sewage Process Capability Shewhart Control Chart |
| title | Shewhart's control charts and process capability ratio applied to a sewage treatment station |
| title_full | Shewhart's control charts and process capability ratio applied to a sewage treatment station |
| title_fullStr | Shewhart's control charts and process capability ratio applied to a sewage treatment station |
| title_full_unstemmed | Shewhart's control charts and process capability ratio applied to a sewage treatment station |
| title_short | Shewhart's control charts and process capability ratio applied to a sewage treatment station |
| title_sort | shewhart s control charts and process capability ratio applied to a sewage treatment station |
| topic | STS Sewage Process Capability Shewhart Control Chart |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000400016&tlng=en |
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