A SYNOPSIS OF STP DISEASES : SBRitis and MBBRitis

Here is the genesis of all problems related to failure of SBR and MBBR Technology when applied on small scale STPs typically prevalent in Decentralised Urban STP (DUS) in India.?I call these diseases SBRitis and MBBRitis. And there are literally tens of thousands of these STPs across the length and breadth of our great country.?In this category I include STPs in the size range of 60 – 5000 KLD.?

A REAL LIFE REQUEST FOR QUOTATION (RFQ) FROM A LEADING ARCHITECT/ HIS PLUMBING CONSULTANT READS THUS ?(Extracted verbatim from the Tender document for a 230 KLD STP)

Sewage treatment processes:

The vendor may select any process as per their area of expertise / proprietary design. The vendor shall submit a detailed process description and flow sheet considering the site conditions.

The vendor may also choose from the list of available methods for treatment or propose any other alternative.

Biological:?Aerobic

• Extended aeration
• SBR (Sequential Batch Reactor)
• FAB (Fluidized Aerobic bed)
• SAFF (Suspended Aeration Fixed Film)
• FBBR (Fluidized bed Bio Reactor)
• RBC (Rotating Biological Contactor)
• MBR (Membrane Bio Reactor)

Biological Anaerobic systems

• UASB
• Septic tank

Physical / Chemical:

• Enzyme activated treatment

Electrical:

• Electrolysis

I have not made this up, so help me God !?Septic tank ?? For a 230 KLD STP ????Please also note that in my dictionary, the FAB, SAFF (As incorrectly defined here) ?FBBR all mean the same.?This consultant suffers from an acute case of Diarrhoea of acronyms he cannot not even begin to understand in the first place. An alumnus of Google Gurukul no doubt.

In a series of short articles I have highlighted the pitfalls of the SBR and MBBR Technologies when rammed down the throats of the Decentralised Urban STPs. The arguments are simple, straightforward and logical enough for a layperson to understand with a little application of common sense.?These articles are collated here for ready reference and easy reading. Pls. do study in detail. I guarantee it is worth your while

WHY SBR STP IS UNSUITABLE IN SMALL DECENTRALISED URBAN STPs

1. https://www.dhirubhai.net/posts/ananth-s-kodavasal-wastewater-treatment-recycle-reuse_sbrstp-eaasstp-comparison-activity-6852988230686642176-74wX

2. ?https://www.dhirubhai.net/posts/ananth-s-kodavasal-wastewater-treatment-recycle-reuse_the-sbr-conundrum-avoid-like-the-plague-activity-6854356703367041025-8HGp

https://www.dhirubhai.net/posts/ananth-s-kodavasal-wastewater-treatment-recycle-reuse_old-flames-cant-hold-a-candle-to-you-activity-6855408879241715712-Hv49

3. https://www.dhirubhai.net/posts/ananth-s-kodavasal-wastewater-treatment-recycle-reuse_the-sbr-conundrum-avoid-like-the-plague-activity-6855473100415471616-mi44

4. https://www.dhirubhai.net/posts/ananth-s-kodavasal-wastewater-treatment-recycle-reuse_the-sbr-conundrum-avoid-like-the-plague-activity-6857321685763420160-HKPq

5 & 6?https://www.dhirubhai.net/posts/ananth-s-kodavasal-wastewater-treatment-recycle-reuse_more-defects-in-sbr-stps-activity-6858101871383597056-sf70

WHY MBBR STP IS UNSUITABLE IN SMALL DECENTRALISED URBAN STPs

https://www.dhirubhai.net/posts/ananth-s-kodavasal-wastewater-treatment-recycle-reuse_why-mbbr-like-its-cousin-the-sbr-is-not-activity-6858736381666181120-eIyQ

1. https://www.dhirubhai.net/posts/ananth-s-kodavasal-wastewater-treatment-recycle-reuse_the-mbbr-conundrum-avoid-like-the-plague-activity-6859188056877080577-ErzV

2. https://www.dhirubhai.net/posts/ananth-s-kodavasal-wastewater-treatment-recycle-reuse_high-dissolved-oxygen-in-mbbr-and-profile-activity-6859580180059553793-DWbw

3. https://www.dhirubhai.net/posts/ananth-s-kodavasal-wastewater-treatment-recycle-reuse_no-microbes-no-treatment-fate-of-mbbr-activity-6860276028061966336-rtb6

4. https://www.dhirubhai.net/posts/ananth-s-kodavasal-wastewater-treatment-recycle-reuse_sludge-age-metabolic-activity-gaussian-activity-6861713709400764416-4m__

5. https://www.dhirubhai.net/posts/ananth-s-kodavasal-wastewater-treatment-recycle-reuse_what-goes-on-inside-an-mbbr-tank-activity-6862036063326617600-MqWB

6. https://www.dhirubhai.net/posts/ananth-s-kodavasal-wastewater-treatment-recycle-reuse_the-good-the-bad-the-ugly-sbr-stp-mbbr-activity-6862777219643777024-Hwwg

I leave you now with these simple thoughts to mull over and decide for yourself whether you want to spend the rest of your life living with such disastrous STPs plagued by SBRitis and its cousin MBBRitis.