TREATMENT OF MUNICIPAL SEWAGE BY THE COMBINATION OF ANAEROBIC AND FACULTATIVE TREATMENT PROCESS - A CASE STUDY

2006 ◽  
Vol 5 (5) ◽  
pp. 1085-1094
Author(s):  
Sudheer Kumar Shukla ◽  
Prerana Tripathi ◽  
Mukesh Pandey ◽  
Amit Dubey ◽  
Misra Shiv Mangal ◽  
...  
Keyword(s):  
Treatment Process ◽  
Municipal Sewage

Sonographic Discovery of Segmental Testicular Infarction

2021 ◽  
pp. 875647932110649
Author(s):  
Kelly Pham
Keyword(s):  
Conservative Treatment ◽  
Testicular Torsion ◽  
Treatment Process ◽  
Surgical Intervention ◽  
Treatment Approach ◽  
Accurate Diagnosis ◽  
Sonographic Diagnosis ◽  
Testicular Infarction ◽  
Segmental Testicular Infarction

The prevalence of segmental testicular infarction is extremely uncommon and very few cases have been reported in literature. Clinical and sonographic presentation of this condition can mimic testicular neoplasms or testicular torsion. Therefore, accurate diagnosis of segmental testicular infarction is imperative in the treatment process. This case study presents the sonographic diagnosis of testicular infarction in a 49-year-old man who reported mild testicular tenderness. A conservative treatment approach was used, saving the patient unnecessary surgical intervention.

scholarly journals Case study modelling for an ettringite treatment process

Water SA ◽  
2018 ◽  
Vol 44 (1 January) ◽  
Author(s):  
C Germishuizen ◽  
S Franzsen ◽  
H Grobler ◽  
GS Simate ◽  
CM Sheridan
Keyword(s):  
Acid Mine Drainage ◽  
Case Studies ◽  
Treatment Process ◽  
Mine Drainage ◽  
Feed Water ◽  
Aluminium Sulphate ◽  
Ettringite Formation ◽  
Water Ph ◽  
Treat Acid Mine Drainage

Several technologies have been developed to treat acid mine drainage (AMD) and attention is shifting towards the removal of sulphate. The formation of ettringite, a hydrous calcium aluminium sulphate mineral, is an option to treat AMD and can reduce the sulphate concentration to well below the discharge specifications. The process modelled in this study includes the formation of ettringite and the recovery of gibbsite through the decomposition of recycled ettringite. The modelling of this process was done using PHREEQC and the results presented in this paper are based on the outcome of different case studies that investigated how the process is affected by a change in parameters. These include, changing the feed water pH, altering the split fractions in the hydrocyclone for the gibbsite recovery and varying the pH for ettringite formation.

Green Chemicals Opportunity for Water Treatment Process Steam EOR: Case Study

2009 ◽  
Author(s):  
A. Nengkoda ◽  
A. Busaidy ◽  
A. Alawi ◽  
M. Johnson ◽  
R. Pahnke ◽  
...  
Keyword(s):  
Water Treatment ◽  
Treatment Process ◽  
Water Treatment Process ◽  
Green Chemicals

Gravitational Search Algorithm Optimization for PID Controller Tuning in Waste-water Treatment Process

2015 ◽  
Vol 73 (3) ◽  
Author(s):  
Mohamad Saiful Islam Aziz ◽  
Sophan Wahyudi Nawawi ◽  
Shahdan Sudin ◽  
Norhaliza Abdul Wahab ◽  
Mahdi Faramarzi ◽  
...  
Keyword(s):  
Pid Controller ◽  
Treatment Process ◽  
Search Algorithm ◽  
Waste Water Treatment ◽  
Gravitational Search Algorithm ◽  
Water Treatment Process ◽  
Pid Controller Tuning ◽  
Gravitational Search ◽  
Law Of Gravity

This paper presents a new approach of optimization technique in the controller parameter tuning for waste-water treatment process (WWTP) application. In the case study of WWTP, PID controller is used to control substrate (S) and dissolved oxygen (DO) concentration level. Too many parameters that need to be controlled make the system becomes complicated. Gravitational Search Algorithm (GSA) is used as the main method for PID controller tuning process. GSA is based on Newton's Law of Gravity and mass interaction. In this algorithm, the searcher agents survey the masses that interact with each other using law of gravity and law of motion. For WWTP system, the activated sludge reactor is used and this system is multi-input multi-output (MIMO) process. MATLAB is used as the platform to perform the simulation, where this optimization is compared to other established optimization method such as the Particle Swarm Optimization (PSO) to determine whether GSA has better features compared to PSO or vice-versa. Based on this case-study, the results show that transient response of GSA-PID was 20%-30% better compared to transient response of the PSO-PID controller.

scholarly journals Urban Tanks for Facilitating Reuse of Municipal Sewage – A Case Study in Mysuru, Karnataka

2015 ◽  
Vol 4 ◽  
pp. 1508-1513
Author(s):  
V.K. Vidya ◽  
Mysooru R. Yadupathi Putty ◽  
K.C. Manjunath
Keyword(s):  
Municipal Sewage
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