Tuesday 23 June 2020

Water management in Tumakuru City - Part 3

Here is a fascinating story of Baje 

Ten years down the line people of Bheemasandra were worried about their failed agricultural produce. This was the result of the entry of treated sewage water into the Bheemasandra Lake. They were majorly cultivating wheat in about more than fifty acres of land. People failed to get desired quality and quantity of wheat using the treated sewage water. Bheemasandra village is the classic example of how farmers adapt to the changes that are inevitable. Farmers found out only Baje could survive in the treated waste water with very high concentrations of Nitrogen and Phosphates. Farmers have shifted to Baje cultivation for a decade. Baje is an expensive herb used for medicine. This wise choice of farmers resulted in converting the shit into a costly medicine.


Baje plantation at Bheemasandra


Haven’t heard of Baje?
The above plant is locally called Baje and it has various names like Vacha and Vasambu. In English it is called as Sweet Flag and scientifically it is referred as Acorus Calamus. Bheemasandra village is cultivating acres and acres of Baje in the area behind the lake. Baje is a medicinal plant which was used as an indigenous medicine. As an infant even I was given Baje when I had digestive problems. Vacha is Baje in Sanskrit which means to speak. In Ayurveda Baje is used to treat digestive disorders, stimulate brain functioning, Asthma, speech impediments, voice clarity, hair care, sedative, cold related problems etc. In recent times Baje has undergone various researches on its health benefits. Countries like Germany, Austria, Holland, Hungary, Italy, Russia, Swedan and Switzerland have recognized the health benefits of Baje and are using it in their pharmaceutical industries. Thus, Baje has gained an export market in recent decades. The local farmers anticipating the good returns started cultivating Baje using the treated waste water. Isn't it a smart choice of the farmers?


How to cultivate Baje?
Baje is grown in wet and mushy lands. Baje uses flood irrigation for its cultivation. Baje is a ten month crop. The technology of its cultivation is the same as wheat cultivation. The land must be ploughed thoroughly and should be watered for two days.  Baje looks very similar to ginger which is bought from the market and planted like wheat on the ploughed land. Quickly grass grows from the planted Baje and of course weeds are removed for twice and manure will be used. When the grass grows up to the desired size indicating the harvest is ready, farmers chop off the grass to its root and take out the Baje which would be of half arm length. Now the task of the farmers is to remove the rhizomes, clean the Baje and cut into small pieces of three to four inches. 
Baje


What about the market for Baje?

Farmers will get a good price every year for their Baje produce. The price varies from three to nine thousand per quintal based on the market price and quality of the produce. Last year people sold their Baje for nine thousand per quintal. It can be very well said that farmers are happy with the price of Baje which is not very uncertain. Farmers would sell their produce on their land itself to the merchants. Few Baje farmers who produce more quantities of Baje will have a contract with the traders in APMC yard in Tumakuru city that they would sell their produce only to their loyal traders. This contract would fetch more return on to the farmers.

Farmers learnt about Baje by experimenting growing Baje using wastewater. One farmer’s good returns inspired the other farmers to cultivate Baje and thus farmers sought out there worries themselves. Now, eighty percent of the treated waste water is used to cultivate Baje in about sixty acres. 


Well done farmers!

-Rakshitha M L

Water management in Tumakuru City- Part 2


Let us see what’s happening to the wastewater in Tumakuru:


Sewage Treatment Plant

Tumakuru has been treating its waste water in a Sewage Treatment Plant located at Bheemasandra since a decade. The capacity of STP is 25MLD. Waste water enters STP inlet through a pump house located near Ring road and the STP outlet is connected to Bheemasandra Lake. As the waste water enters the STP a chemical will be added to reduce the smell of the waste water. Every day thirteen kilograms of chemicals will be put into the waste water twice a day. Waste water stays in the STP for about three days and gets discharged into Bheemasandra Lake. STP is responsible for primary treatment of the waste water while secondary and tertiary treatment is not taken care currently. It was noted that Melekote Lake which is adjacent to the Bheemasandra Lake also gets affected by the treated waste water when the Bheemasandra Lake overflows. 

Map of Bheemasandra Lake and Melekote Lake




Animals grazing around Bheemasandra STP



Wetlands
It was observed that the area around the Sewage Treatment Plant had natural wetlands having Typha, Hyacinth and other wetland plants.





Are people are using the treated waste water for cultivation?

Yes, people are using treated wastewater for cultivating. People grow coconut, areca nut, corn and green leafy vegetables for Sheep and goats. Vegetables are grown on a very small scale using borewell water since vegetables can’t be grown using treated sewage water. 


Farmers pumping the treated sewage water having motors installed in the lake


Now let us hear from people, what do they feel about the treated waste water in Bheemasandra Lake?

People of Bheemasandra are in a state of helplessness, if I had to say in their words, “we have no choice, madam” is their answer. Villagers spoke of the advantages and nevertheless to list out many disadvantages of treated wastewater. None of the villagers mentioned the latter alone, ignoring the former. Yes, people have the advantage of using this treated waste water for cultivation since they have no other source of water for cultivation. Since not all people can afford to drill a borewell people are okay to pump the treated waste water from the Lake to water their Areca nut and Coconut farms. People have gotten used to Baje cultivation after shifting from wheat cultivation. To sum up the advantage of treated wastewater is to water their farms and Baje plantation and famers spending less on fertilizers.

When we look into the disadvantages of the treated wastewater to the villagers of Bheemasandra, people said, “Will you purify this waste water and then allow the good water into the lake”. Sewage water has been primarily treated and villagers are aware that it is not treated fully. Even though people are relying on treated wastewater for cultivation they complain about the Quality of water. People have seen the reduction in the quality and quantity of Coconut and Areca nut produce. For instance, tender coconut water has become tasteless, coconuts will get spoiled soon and vegetables won’t grow to a good size. Even though the quantity of water is observed to be good in borewells and open wells, people complain of getting the same water. Water from the open wells have become stinky and they cannot use the after for domestic purposes. People had conflicting views on the quality of borewell water that is few said they can grow vegetables using the borewell water but few said their borewell water is also polluted due to the Lake’s water and the usage of borewell water is again limited. 
The other major complaints of treated wastewater includes the RO plants water which couldn’t be stored more than a day, tastelessness, existence of poisonous snakes like Russell Viper (Kolatamandala and huri mandala), some people witnessing skin diseases, high mosquito breeding, increase in weeds. 


It is important to notice the people's confusion on what happens once the government starts pumping the treated wastewater to sell to industries in Vasanthanarsapura and Anthrastanahalli? Villagers being aware of this darker side choose to accept the primarily treated water in spite of their problems. It is now up to the government to choose between farmers and industries. It is worth for the government to look at the huge Baje plantation and farmers’ income before it takes up the decision. 


Let us learn about the fascinating story of Baje in Part 3 of Water Management in Tumakuru City.

-Rakshitha M L

Saturday 20 June 2020

Water management in Tumakuru City - Part 1



Water – Jeevajala

Let me ask you this rather simple question who needs water?
What can I expect as an answer? There is no living thing which doesn’t need water. Is this your answer? You are right.

Well, Water is the source of life for all the  creatures on earth. It is because of water that this planet is not lifeless.


If we had to frame a circle of beneficiaries branching out from the water, we will end up looking at its usage. Of course survival occupies the first place concerning potable water and water for domestic purposes. This is called water for life.

 The next immediate usage is water being used as a major input for livelihoods,  which is the practice of agriculture. Agriculture is the consumptive use of water. Plants take in water through mainly the roots  and evapo-transpire it sending it to the atmosphere as vapor.

After it is used as water for life – for washing clothes, washing dishes, having a shower, using it in the toilet, water  comes out as a waste.  We all known this as wastewater which every city must manage if it were not to pollute our rivers, lakes and streams.
Waste water has associated  costs involved in terms of its collection, conveyance and  treatment. Many towns and cities cannot afford it hence it ends up going out of these urban areas untreated.  Post treatment usage is also an issue to be designed and managed . Can farmers be part of the solution of using untreated and treated wastewater ?

Water also has been the heart of a community called Bhovi. Bhovi is the well digging community who also constructed lakes for over a 1000 years. Bhovis relied on the search or storage of water for their livelihoods. A few decades ago it was just a matter of pumping water from the open well which was all the time full. Now we have stepped into the era of borewells going more than thousand feet to fetch the water. The question arises is the uncertain results on part of farmers investing huge part  of their incomes in the desperate search for water , as well as on the alarming groundwater levels depletion leading  towards unsustainable resource use. 


The only way out is to first understand what is happening around us and then act now. For example,  taking a step towards increasing the ground water table would be a dream impacting all life . Water is however holistic and thus one approach alone cannot work in isolation. Thus, this is an effort to look at the whole image of water with various dimensions. The study on water has its roots in Science and Social sciences like Sociology, Economics, Psychology and Governance. The study aims to achieve sustainability without compromising the livelihoods of dependents. 

Current study is focused on Water Management in Tumakuru City





Let us have a picture of water in Tumakuru city and hinterland:

Tumakuru is yet another city in India struggling to meet the water demand of its population of 300,000. Tumakuru is not self-sufficient in its water supply. It is dependent on Hemavathi river water from Gorur dam situated at Hassan which is about 175 kms. Tumakuru doesn’t incur pumping charges as Bengaluru city does to get water from Hemavathi since water flows through gravity.  The water from Hemavathi is stored at Bugudanahalli Lake which has the capacity of 240Mcft.  Every individual requires 135 liters per day as per design standards of the government. But City Corporation is currently providing 107 liters per day. Tumkur City Corporation charges 2.63 paisa per liter of water.There are 371 lakes in Tumakuru district but the Minor Irrigation department has not been able to provide water for cultivation for four years since the lake water levels was not forty percent full, a minimum required for providing irrigation.There are two water treatment plants and one Sewage Treatment Plant functioning with 25MLD capacity situated at Bheemasandra.  Let us know what's happening to the wastewater in Tumakuru City in Part 2 of Water Management in Tumakuru City.

- Rakshitha M L