Tuesday, April 09, 2019

Water - a great resource to be properly preserved and exploited..

Can we be more selfish ??
Water is one of the greatest resources we have on planet earth besides the Sun's rays and water. Of all the water only about 23% is potable and almost 85% of that water is in glaciers and snowcaps. Only 3% of the total water is potable. These fresh water resources are at danger of being polluted.  While we continue to pollute surface fresh water resources and smartly exploit groundwater resources, the animals on this earth are left to themselves to care for the water. They are at a great danger of being at a higher risk of  extermination.

The six things that make life possible on planet earth are given in this National Geographic link .. (click here for the link). Its all about our solar system and the sun.

Water - the third world war will be fought over water.. So preserve it ..
Before we go to understand about water and the how countries can get affected by it, let us take a look in our country itself. The Indus waters treaty was signed in 1960 by India and Pakistan brokered by the World Bank, wherein the waters from Indus and its five tributaries would be shared by India and Pakistan. While India would have rights to the waters of the tributaries of Ravi, Beas and Sutlej, Pakistan would get the waters from Jhelum and Chenab besides the mighty Indus itself.

The water flow to India is almost 33 million acres feet (MAF) of which 95% is used within the country and the balance 5% flows to Indus and through Pakistan to the Arabian Sea. Indus Water Treaty Click here for the  Brittannica link

During the recent skirmishes between India and Pakistan at Pulwama, this 5% of water that comes to about 1.6 MAF water was decided to be used exclusively by India and not to be let off to the Indus. 

The dispute between the Southern riparian states of Tamil Nadu and Karnataka over the waters of the South Indian river Cauvery that originates in Karnataka and flows through Tamil Nadu before emptying into the Bay of Bengal is a major source of friction between the two states.

The water crisis in Bangalore is fuelled by the Cauvery water dispute. (click here)

Click here for the Newsweek link that states the third world war will be fought over water ..

george ..



Monday, April 08, 2019

Beer Distribution game 8 April 2019 ..

The supply details and cost data for diff entities
Beer Distribution game .. 8 April '19 

Bullwhip effect was evident in the best way today after we played the MIT SCM Beer Distribution game in the second sem MBA Operations class this afternoon ..

The total SC costs of SC A at INR 9510/- was almost double of SC B at INR 5120/- even though both the supply chains handled the same total items of 51 units of Beer crates over a 12 week period in a step wise increase and decrease mode of customer demand. The similar costs of holding and of shortage (shortage costs = 3 x holding costs) in both the supply chains are given in the figure. Clearly it was evident that SC B was well managed in terms of costs than SC A. 

Another aspect that was very clearly evident was the gradual amplification of the variance of the orders placed by the downstream entities on upstream entities, commonly called the Bullwhip Effect.

Figures in brackets on the left of costs denote
variance of orders
For SC A, the variance of the orders placed increased from 6.8 at retailer to 37 (wholesaler) to 38.2 (distributor) to 216.9 (manufacturer) was markedly much more than a disciplined SC B which had corresponding values of variance at 4.65, 24, 2, 34.8 and 42.5 .. 

The comparatively lower variance of orders placed in SC B in comparison to SC A explains the total SC costs of SC B being just half of SC A. 

Great learning of the relationship of Bullwhip effect on Total SC costs .. 

If the total profits from trading 51 items ( total demand) each with 2 retailers at Rs 100 each were to be considered, we find the total profits from SC A would be just Rs 690/- compared to SC B's Rs. 5090/-. 

When I asked the members of SC A as to why their costs and variance of orders placed were so high, their unanimous reply was that they floundered in the demand forecasting aspect. 

Thanks to Massachusetts Institute of Technology for giving the students great learning..

George .. 

Walmart exclusive and innovative Inventory practices ..


Walmart logo ..
Walmart Logo - Save Money, Live Better .. What does this mean ?? Walmart's main focus was, is and always will be to sell products at low rates to help customers save money. Moreover the items sold are not cheap, they are high quality products which will help the customers lead better lives too.

Here are a few web links on Walmart's innovative inventory management practices that have helped them become not only the largest retailer of the world, but also the largest business conglomerate of the world.  

Walmart's succesful SCM (click here..) (Compulsory reading material for students)

Vendor Managed Inventory video ( click here)

Strategic Sourcing video (click here..)

Use of Technology video (click here..)

Shoplifting at Walmart, we have not heard much about it. Is it a major problem ?? Not yet. As is common with all other supermarkets and hyper marts, Walmart too has its own pilferage issues, which they are trying to solve partly by using technology by increasing surveillance.

We played an interesting Role Play game in the class. The students in five teams were asked to represent the different departments / areas from Walmart who were specialised in some of the top world-class INNOVATIVE inventory management practices like
1. Vendor Managed Inventory (VMI)
2. Strategic Sourcing,
3. Every Day Low Pricing (EDLP)
4. Extensive of Information technology systems (RFID etc.) and
5. Cross Docking. 
The students were representing Walmart team members who were to make a presentation / discussion with Ratan Tata representing Tata Sons at Walmart HQ in Arkansas convincing why Walmart should tie up with Tata instead of doing it alone in India in physical commerce.

Great words from Ratan Tata, the humble and simple
doyen of the Tata business empire ..
The earlier Walmart collaborator Bharti was a big disgrace for Walmart and Tata's collaborator Target has also not helped Tata progress the way it was meant to progress. That is when Tata and Walmart decided to have discussions and this brought Ratan Tata to Arkansas to Walmart HQ. The threat of Amazon in the electronic retailing space was very unsettling for both Tata and Walmart.Walmart had joined hands with Flipkart from India to handle Amazon in the electronic retailing space in India.

Ratan Tata interacted with each of the 5 teams on their specific world-class SCM strategies as to why Tata should resort to these strategies in India and how it would benefit Tata's Indian operations of Star Bazar, the physical commerce wing of Tata in India.

The students were very excited to meet the dynamic, energetic, handsome and flamboyant former Chairman of Tata Sons and we’re ready with answers to the questions asked by Ratan Tata. Ratan Tata has gone back to India convinced and confident with his interactions and with hopes that he will be able to start collaboration with Walmart in India. 

george..

Friday, April 05, 2019

E-Waste (Management and Handling) Rules 2011

Electronic waste, or e-waste, is a term for electronic products that have become unwanted, non-working or obsolete, and have essentially reached the end of their useful life. Because technology advances at such a high rate, many electronic devices become “trash” after a few short years of use

E-Waste (Management and Handling) rules 2011 says that the producer of electrical and electronic equipment shall be responsible for
1. collection of e-waste during the manufacture of the e-waste and channelising it for recycling or disposal 
2. the collection of e-waste from the end of life of the products in line with the principle of Extended Producer responsibility by registered collection agents authorised by the producer 
3. the arrangement of collection centres or take back points collectively or individually 
4. ensuring transparent financing and organising system to ensure the environmentally sound disposal of e-waste generated by the end of life activities of the product 
5. Providing address / contact details of authorised collection centres or help lines of the producer of electric and electronic product to customers to ensure safe disposal of products 
6. creating awareness by advts / posters on       a. information on hazardous constituents in the components       b. information on improper handling / damage / breakage and recycling        c. instructions on handling equipments after its use, along with DOs and DONTs..      d. affixing a clearly visible signal to prevent e-waste from being dropped in garbage bins means for other types of wastes 
7. Obtaining authorization from the concerned authority to handle such e-wastes 
8,. Maintaining records of e-waste handled and make it available for scrutiny
9. File annual returns by 30 June every year for the just finished financial year

 The following seven brands are top ranked for their effective e-waste management practices
1. Onida
2. Intex
3. Lenovo
4. Nokia
5. Canon India
6. Panasonic India
7. Sansui India
I am sure with such good rules and regulations in place, if we as a whole try to practice these rules, we can be sure of  a safe and secure environment for our children in the future.

george.

BPR links..







Thursday, April 04, 2019

Recycling Medical Wastes ..

What are medical wastes ?

The wastes generated at health care facilities, such as hospitals, physicians' offices, dental practices, blood banks, and veterinary hospitals/clinics, as well as medical research facilities and laboratories are called medical wastes. 
International symbol for biological hazard

Medical Wastes fall into four categories

1. General Medical waste - eg paper, files, plastics etc..

2. Infectious medical waste - surgical blades, blood soaked cotton, discarded body parts, used bandages, dressings etc..

3. Hazardous medical waste - chemotherapy drugs, thermometer mercury etc..

4. Radioactive medical waste - wastes from radioactive therapies, solvents, nuclear medicine therapies etc for cancer

Why can't medical wastes re handled like normal wastes ?

Courtesy - Apollo Hospitals
The presence of bacteria, infected sharp tools etc can cause damage to any body tissue which comes in contact with it. Also if not destroyed we are not sure into what all dangerous forms can bacteria morph into. 

The medical wastes first need to be sanitised and then disposed, mainly by an incineration process.. Needles, blades etc are put in a sharps container and then incinerated. 

Incineration is a waste treatment process that involves the combustion of organic substances contained in waste materials. Incineration and other high-temperature waste treatment systems are described as "thermal treatment". Incineration of waste materials converts the waste into ash, flue gas and heat. Wikipedia

Aerobic incineration happens in the presence of oxygen and anaerobic incineration happens in the absence of oxygen.  Click here for video of an aerobic incinerator .. What happens inside an incinerator (click here )

Autoclave
Old (after a week), unused blood is transferred to a bio-disposal unit and then incinerated. Refrigerated blood can be kept up to six weeks. 

Autoclave is a pressure chamber used to carry out industrial processes requiring elevated temperature and pressure different from ambient air pressure. These are used for sterilising equipments and for treating and disposing wastes like blades, sharps etc before they are released into the outside world.

This gives a brief information of how medical wastes can be classified.

george..

The process of Recycling ..

What is Primary, Secondary and Tertiary Recycling?

Frequently we hear the word recycling and we hesitate, thinking a second before committing to anything. Long time back, recycling was not considered to be a safe and good practice, but over time it has been shown that with care and due diligence, we can indeed use recycled products and save the environment.
Recycling logo seen on products
.

There are three types of recycling, known as primary, secondary and tertiary. 
   1. Primary recycling means that the recyclable material/product is recovered and reused without being changed in any way and usually for the very same purpose. 
   2. Secondary recycling means that the material/product is reused in some other way without reprocessing 
   3. Tertiary recycling refers to a process that involves chemical altering of the 
material/product in order to make it reusable. www.recyclingconsortium.org.uk 

Examples of Primary, Secondary and Tertiary Recycling

Primary-
In order for the material/product to be classified as primary recycled, it mustn't be changed in any way. Primary recycling can be defined as secondhand use - reusing yourself, donating to a friend, family member or charity organisation, or/and selling. Using a second hand jeans bought from a roadside vendor.

Secondary-
Secondary recycling involves some sort of modification of the material/product without the use of chemical processes. Examples include cutting the plastic drinking water bottle into two parts and using one part as a pen stand or a flower vase, plant pot, cutting and reshaping various waste products to make arts and crafts, cutting envelopes into smaller pieces to use them as scrap paper, etc. Cutting a jeans at the knee so that it becomes a denim trouser.

Tertiary-.
If a material/product has been tertiary recycled it means it has been reprocessed either by a chemical process or heat. Examples include melting metals, chemically treating old paper and breaking down plastic bottles in order to make brand new products. Cutting open old jeans so that it can be used as a swabbing cloth.

Recycling bins colours in different countries
Tertiary recycling can be external or internal

     External recycling means that the recycled materials/products were recovered and reprocessed thanks to public participation - sorting waste and putting it in recycling bins to be collected and transferred to reprocessing facilities. 

     Internal recycling means that the materials/products were recovered without public participation, for example within factories and manufacturing facilities. www.recyclingconsortium.org.uk

As per Pollution Control Board in India (Haryana), the colours are as given here -

  • Green for Biodegradable wastes, 
  • Black for e-waste  (E-waste)
  • Blue - plastics and metals   (Plastics and metals)

Danes use incinerators to handle all types of wastes (click here for video)

Incineration is a waste treatment process that involves the combustion of organic substances contained in waste materials. Incineration and other high-temperature waste treatment systems are described as "thermal treatment". Incineration of waste materials converts the waste into ash, flue gas and heat. Wikipedia.

In fact incineration can be considered as a fourth category of recycling called quaternary recycling where the plastics and other wastes are burnt to recover the heat from the process to product steam or to transfer it to a heat exchanger etc..

Manchester City Council of UK has comes up with a site that tells to what colour recycling bins to dump our waste (click here) and another one that tells us how these wastes can be recycled (click here).

www.kayalankadai(click here) is a reliable domestic waste collection website that collects wastes from the homes around Coimbatore and segregates them and recycles them.

www.kuppathotti.com (click here) and www.kachradabba.com (click here) are online waste collection services operating in Bangalore, Chennai and Pune that comes to your doorstep to collect domestic wastes and pays you for it as well.

Biogas :

Breaking down organic waste in the absence of oxygen produces a gas called as biogas. This gas can be used for cooking, heating purposes. www.biotech-india.org is a company that sells equipments..

Compost : 

Decomposing organic waste from homes etc in a pit mixed with soil, coir, peat etc produces organic manure which can be used as fertilizers for plants avoiding the use of chemical fertilizers. www.dailydump.org is an organisation that helps meet your composting needs and advice..


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