Skip to main content

If your Sewage Treatment Plant blower stop working then your Sewage Treatment Plant can work without any problem?

This question is generally asked to test your basic knowledge about the operation of machinery as we all know that if onboard STP is of anaerobic type then the microorganism break down biodegradable material in the absence of oxygen, but if it is of aerobic type then definitely STP will not work because Aerobic digestion is a bacterial process occurring in the presence of oxygen.

If, however, there is insufficient oxygen for these bacteria then alternative bacteria dominate. These Anaerobic Bacteria produce Hydrogen Sulphide, Methane and Ammonia. These gasses are either highly toxic or flammable or both. In particular, Hydrogen Sulphide is toxic to humans in concentrations down to 10ppm and its flammable vapours are heavier than air so may build up in lethal pockets in enclosed spaces.

So, if the blower stops working the aerobic bacteria may die and it will take a longer time to regenerate.


Labels:

Comments

  1. TechMatrite22 May 2020 at 21:12

    or a term very similar to this, and will have a very simple model of switching from blower to vacuum, usually by means of a conveniently placed lever. electric leaf blower

    ReplyDelete
  2. ❤❤ ہو یار31 October 2020 at 16:10

    You have a good point here!I totally agree with what you have said!!Thanks for sharing your views...hope more people will read this article!!! Motiva Singapore

    ReplyDelete
  3. karlo andy14 November 2020 at 17:03

    treatment is subject to incorporates, the sort of the malignant growth, the stage or how far the disease has spread, the age of the patient, their wellbeing status, and numerous other individual attributes of the patient. where to buy cbd oil in kansas city

    ReplyDelete
  4. William Noah5 August 2021 at 23:04

    Profit primarily prime quality items -- you can understand them all within: Sollift

    ReplyDelete

Post a Comment

Popular posts from this blog

Bilge Injection Valve

Bilge Injection is a valve that enables the engine room bilges to be pumped out directly overboard in the event of an emergency such as flooding. The valve is normally fitted to the end of a branch connection with the main sea water suction line. This enables large main seawater cooling pumps to be used as a bilge pump in an emergency. Emergencies like fire and flooding involve the use of seawater. If there is a fire, seawater is the biggest resource of water available in the sea. Similarly, if it involves flooding of the engine room, cargo spaces or any other place on the ship for that matter; you would again require pumping the sea water out of the ship. In both these cases, you require pumps.  There are two valves in close proximity namely main injection valve and bilge injection valve. Both of them have their own independent controls. The diameter of the bilge injection valve is kept nearly 66% of the main valve diameter which draws water directly from the sea th...
Post a Comment
Read more

Difference Between A, B & C-Class Divisions?

IMO Symbol A Class Division  IMO Symbol B Class Division  SOLAS has tables for structural fire protection requirement of bulkheads and decks. The requirements depend on the spaces in question and are different for passenger ships and cargo ships. The Administration has required a test of a prototype bulkhead or deck in accordance with the Fire Test Procedures Code to ensure that it meets the above requirements for integrity and temperature rise. Types of Divisions: "A" Class "B" Class "C" Class "A" Class: "A" class divisions are those divisions formed by bulkheads and decks which comply with the following criteria: They are constructed of steel or equivalent material They are suitably stiffened They are constructed as to be capable of preventing the passage of smoke and flame to the end of the one-hour standard fire test. they are insulated with approved non-combustible materials such that the average tempera...
14 comments
Read more

Why do we blow through engine before starting ?

The engine is blown through on air before starting it : a) To Blow out through indicator cock any residual exhaust gas or     other products of combustion trapped inside the cylinder after     shutting the engine. b) To check if any jacket cooling water from cylinder head or     turbocharger or any other source, has leaked while the engine          was shut and collected on top of piston. If while blowing                  through, water comes out of indicator cock or relief valve, we          need to investigate and rectify the fault before starting the                engine. It is imperative that the engine is blown through before        starting. There have been cases where the generator engine has        been started from control room without bothering to blow     th...
14 comments
Read more