This document discusses technologies for mitigating arsenic and toxic minerals in water, as well as for surface water purification. It notes the scarcity of safe drinking water in rural areas of developing countries like Bangladesh, where groundwater is often contaminated with arsenic and surface water contains harmful bacteria. The document describes a patented filtering compound that can efficiently absorb arsenic and other toxic minerals from water, reducing arsenic levels well below permissible limits. It also discusses developing inexpensive test kits and a regeneration process to extend the life of the filtering medium. The goal is to provide cost-effective water purification projects to at-risk rural communities.

1. WELCOMEWELCOME
Technologies forTechnologies for
 Arsenic & Toxic Minerals Mitigation, IronArsenic & Toxic Minerals Mitigation, Iron
Removal, Surface Water Purification & ETPRemoval, Surface Water Purification & ETP
 Cheap Hygienic Neutral PCheap Hygienic Neutral PHH
Liquid Hand-Liquid Hand-
WashWash
 Cheap Hygienic Neutral PCheap Hygienic Neutral PHH
Liquid FloorLiquid Floor
CleanerCleaner
 Concentrated & Neutral PConcentrated & Neutral PHH
Cheap LiquidCheap Liquid
Detergent for Garments & Utensil WashDetergent for Garments & Utensil Wash

2. AbstractAbstract
Scarcity of safe drinking water is a fundamental problem of poor people of developing countries.Scarcity of safe drinking water is a fundamental problem of poor people of developing countries.
About 77 million poor rural people out of 160 million people of Bangladesh are the victims ofAbout 77 million poor rural people out of 160 million people of Bangladesh are the victims of
Arsenic poison and crisis of safe drinking water. There is no facility for scientific water purificationArsenic poison and crisis of safe drinking water. There is no facility for scientific water purification
in rural villages like urban areas. Water of urban areas may also be contaminated by harmfulin rural villages like urban areas. Water of urban areas may also be contaminated by harmful
bacteria due to defective supply system. So, many people, especially children, die if water bornebacteria due to defective supply system. So, many people, especially children, die if water borne
diseases every year. A research work aimed at inventing water filtering complex compound fordiseases every year. A research work aimed at inventing water filtering complex compound for
absorbing arsenic and other toxic minerals of water, to use this filtering medium in low-costabsorbing arsenic and other toxic minerals of water, to use this filtering medium in low-cost
modern scientific water purification filter composite and traditional filtering systems. It has beenmodern scientific water purification filter composite and traditional filtering systems. It has been
demonstrated that this filtering compound (Patented) acts as an efficient absorptive medium fordemonstrated that this filtering compound (Patented) acts as an efficient absorptive medium for
Arsenic and other Toxic Minerals, but it let to flow the essential minerals of water withinArsenic and other Toxic Minerals, but it let to flow the essential minerals of water within
permissible limits. Analytical measurements of Arsenic, Iron, Calcium, Magnesium, Potassium,permissible limits. Analytical measurements of Arsenic, Iron, Calcium, Magnesium, Potassium,
Sodium, etc. of mitigated water and respective crude water samples of arsenic contaminated tube-Sodium, etc. of mitigated water and respective crude water samples of arsenic contaminated tube-
well of Sitakunda, Chittagong, Bangladesh, were performed in Bangladesh University ofwell of Sitakunda, Chittagong, Bangladesh, were performed in Bangladesh University of
Engineering and Technology (BUET), and Nutrition and Food Science Institution of DhakaEngineering and Technology (BUET), and Nutrition and Food Science Institution of Dhaka
University. Test reports of BUET indicated that 173.5 micrograms/liter (0.1735 ppm) arsenic ofUniversity. Test reports of BUET indicated that 173.5 micrograms/liter (0.1735 ppm) arsenic of
crude water was reduced to 1.30 micrograms/liter (0.0013 ppm) after filtration through the newcrude water was reduced to 1.30 micrograms/liter (0.0013 ppm) after filtration through the new
Arsenic and toxic minerals absorptive filter medium. Recent analysis report of JapaneseArsenic and toxic minerals absorptive filter medium. Recent analysis report of Japanese
environmental laboratory, Asia Arsenic Network, has indicated that an Arsenic contaminated deep-environmental laboratory, Asia Arsenic Network, has indicated that an Arsenic contaminated deep-
well water sample of BRAC-WASH of Satkheera has been mitigated by the filtering compound andwell water sample of BRAC-WASH of Satkheera has been mitigated by the filtering compound and
treatment process, from 0.082 ppm Arsenic to less than 0.001 ppm Arsenic. Permissible limit of thetreatment process, from 0.082 ppm Arsenic to less than 0.001 ppm Arsenic. Permissible limit of the
Government is 0.05 ppm and World Health Organization (WHO) accepts 0.01 ppm Arsenic forGovernment is 0.05 ppm and World Health Organization (WHO) accepts 0.01 ppm Arsenic for
drinking purpose. Safe drinking water can be produced from water of reserved ponds, rivers, hillydrinking purpose. Safe drinking water can be produced from water of reserved ponds, rivers, hilly
springs or flood by using the same modern filter composite with this filtering compound.springs or flood by using the same modern filter composite with this filtering compound.
Calculated quantity of sodium or calcium hypochlorite and dirt coagulant should be used for thisCalculated quantity of sodium or calcium hypochlorite and dirt coagulant should be used for this
surface water purification before filtration. Almost all absorptive media become exhausted aftersurface water purification before filtration. Almost all absorptive media become exhausted after
several days. Consequently, questions of longevity and effectiveness have been arisen about manyseveral days. Consequently, questions of longevity and effectiveness have been arisen about many
imported and local Arsenic mitigation projects. To make this new Arsenic Mitigation plant as aimported and local Arsenic mitigation projects. To make this new Arsenic Mitigation plant as a
permanent and cost-effective project, a simple and environmentally friendly regeneration processpermanent and cost-effective project, a simple and environmentally friendly regeneration process
for this exhausted absorptive medium has been developed. To carry on self-supported andfor this exhausted absorptive medium has been developed. To carry on self-supported and
transparent arsenic mitigation work, cheap and effective arsenic test kit has also been developed.transparent arsenic mitigation work, cheap and effective arsenic test kit has also been developed.
This kit can be used by the rural users and in rural school laboratories. Bangladesh GovernmentThis kit can be used by the rural users and in rural school laboratories. Bangladesh Government
has given patent for this invention.has given patent for this invention.

3. BACKGROUNDBACKGROUND
 Bangladesh is a riverine country; in respect of area it has one of the largest valuable fresh-waterBangladesh is a riverine country; in respect of area it has one of the largest valuable fresh-water
resources of the world. But access to safe water has been very difficult due to arsenicresources of the world. But access to safe water has been very difficult due to arsenic
contamination in groundwater and pollution in surface water. Many people, especially children,contamination in groundwater and pollution in surface water. Many people, especially children,
used to die of water borne diseases every year by drinking surface water. So, extraction ofused to die of water borne diseases every year by drinking surface water. So, extraction of
underground water started during British colonial era. But recently it has been known thatunderground water started during British colonial era. But recently it has been known that
underground aquifer layers of Bangladesh are highly contaminated with Arsenic poison. Aboutunderground aquifer layers of Bangladesh are highly contaminated with Arsenic poison. About
77 million poor rural people out of 160 million people of Bangladesh are the victims of Arsenic77 million poor rural people out of 160 million people of Bangladesh are the victims of Arsenic
poison and crisis of safe drinking water. There is no facility for scientific water purification inpoison and crisis of safe drinking water. There is no facility for scientific water purification in
rural villages like urban areas. Rivers, ponds, hilly springs and other surface water sources arerural villages like urban areas. Rivers, ponds, hilly springs and other surface water sources are
contaminated with fecal bacteria, household and industrial wastes. Many shallow tube-wells ofcontaminated with fecal bacteria, household and industrial wastes. Many shallow tube-wells of
62 districts out of 64 are contaminated with higher concentration of Arsenic than the selected62 districts out of 64 are contaminated with higher concentration of Arsenic than the selected
permissible limit of the Government (0.05 ppm) and World Health Organization (0.01 ppm). Inpermissible limit of the Government (0.05 ppm) and World Health Organization (0.01 ppm). In
many areas deep wells are also contaminated. Poor rural people do not afford deep tube-wells.many areas deep wells are also contaminated. Poor rural people do not afford deep tube-wells.
Besides this, underground water layers of some other countries of the world are contaminatedBesides this, underground water layers of some other countries of the world are contaminated
with Arsenic. Bangladesh has extended coastal areas in the southern part. Soil and water ofwith Arsenic. Bangladesh has extended coastal areas in the southern part. Soil and water of
rivers of this part are saline. So, underground aquifer layers contain salinity exceeding therivers of this part are saline. So, underground aquifer layers contain salinity exceeding the
permissible limit of salt for drinking water. Consequently the underground water of thesepermissible limit of salt for drinking water. Consequently the underground water of these
regions is unfit for drinking and cooking purposes. Salinity is increasing day by day withregions is unfit for drinking and cooking purposes. Salinity is increasing day by day with
increasing sea level as an affect of global warming. So, Bangladesh is facing an environmentalincreasing sea level as an affect of global warming. So, Bangladesh is facing an environmental
disaster and crisis of safe drinking water in rural villagesdisaster and crisis of safe drinking water in rural villages
 Recent epidemiological studies have indicated that there is an association between relativelyRecent epidemiological studies have indicated that there is an association between relatively
high and lengthily exposure to Inorganic Arsenic compounds and cancer. Symptoms of arsenichigh and lengthily exposure to Inorganic Arsenic compounds and cancer. Symptoms of arsenic
poisoning (arsenicosis) are the development of dark spots on the skin, hardening of palms andpoisoning (arsenicosis) are the development of dark spots on the skin, hardening of palms and
soles. Internal organs including the livers, kidneys and lungs can be affected. In the most severesoles. Internal organs including the livers, kidneys and lungs can be affected. In the most severe
cases cancer may occur in the skin and internal organs. Limbs can be affected by gangrene. Itcases cancer may occur in the skin and internal organs. Limbs can be affected by gangrene. It
has posed a dangerous challenge to development and has been raised as a new health hazard.has posed a dangerous challenge to development and has been raised as a new health hazard.

4. OBJECTIVESOBJECTIVES
1. To supply cost-effective Drinking Water Purification Projects and1. To supply cost-effective Drinking Water Purification Projects and
accessories to Rural Villages, Slums, Garments and otheraccessories to Rural Villages, Slums, Garments and other
industries.industries.
2. To serve the rural people of Arsenic contaminated areas and2. To serve the rural people of Arsenic contaminated areas and
people of areas with crisis of safe drinking water.people of areas with crisis of safe drinking water.
3. To remove Bacteria, Turbidity, Arsenic, Iron and other Toxic3. To remove Bacteria, Turbidity, Arsenic, Iron and other Toxic
Minerals of underground water, surface water, hilly springs waterMinerals of underground water, surface water, hilly springs water
and flood water by modern water treatment machineries and waterand flood water by modern water treatment machineries and water
purification technologies.purification technologies.
4. To serve the victims of water borne diseases by ensuring supply4. To serve the victims of water borne diseases by ensuring supply
of safe drinking water free from Bacteria, Arsenic and Toxicof safe drinking water free from Bacteria, Arsenic and Toxic
Minerals.Minerals.
5. To train up the representative of users of the projects for5. To train up the representative of users of the projects for
producing safe drinking water by operation, maintenance, use ofproducing safe drinking water by operation, maintenance, use of
accessories, chemicals etc. for self-supported execution of wateraccessories, chemicals etc. for self-supported execution of water
purification processes.purification processes.
6. To train up the representative of users of the projects for testing6. To train up the representative of users of the projects for testing
Arsenic, Iron, PH, Total Dissolved Solid (TDS) and other basicArsenic, Iron, PH, Total Dissolved Solid (TDS) and other basic
Parameters of water Quality tests for monitoring independentlyParameters of water Quality tests for monitoring independently
Arsenic Mitigation Process and other water purificationArsenic Mitigation Process and other water purification
technologies without help of experts or laboratories.technologies without help of experts or laboratories.

5. BUET ANALYSIS REPORT OF ARSENIC & IRONBUET ANALYSIS REPORT OF ARSENIC & IRON
OF TUBE-WELL WATER, SITAKUNDA, CHITTAGONGOF TUBE-WELL WATER, SITAKUNDA, CHITTAGONG

6. Arsenic Analysis Report of Mitigated WaterArsenic Analysis Report of Mitigated Water
OF BRAC-WASH PROJECT, SATKHEERAOF BRAC-WASH PROJECT, SATKHEERA

7. Arsenic Analysis Report of Crude Water ofArsenic Analysis Report of Crude Water of
BRAC-WASH Project, SatkheeraBRAC-WASH Project, Satkheera

8. Test Reports of BUET & DUTest Reports of BUET & DU
Project Location: Sitakunda, ChittagongProject Location: Sitakunda, Chittagong

9. Bangladesh Gazette of InventionBangladesh Gazette of Invention

10. Bangladesh Gazette of InventionBangladesh Gazette of Invention

11. Patent Certificate for InventionPatent Certificate for Invention

12. Arsenic-Crisis Group PublicationArsenic-Crisis Group Publication
 Technology offered: As, toxic minerals, Fe removal & SW purificationTechnology offered: As, toxic minerals, Fe removal & SW purification
 sssupervision@yahoo.com [arsenic-crisis] <arsenic-crisis-noreply@yahoogroups.com>sssupervision@yahoo.com [arsenic-crisis] <arsenic-crisis-noreply@yahoogroups.com>
 April 30 at 5:01 PMApril 30 at 5:01 PM
 ToTo
arsenic-crisis@yahoogroups.comarsenic-crisis@yahoogroups.com
Message bodyMessage body
Dear All,Dear All,
I would like to draw your kind attention to the scarcity of safe drinking water in the rural villages of developingI would like to draw your kind attention to the scarcity of safe drinking water in the rural villages of developing
countries. There is no facility for scientific water purification in rural villages like urban areas. The surface watercountries. There is no facility for scientific water purification in rural villages like urban areas. The surface water
of Bangladesh and other developing countries is highly contaminated with household and industrial wastes,of Bangladesh and other developing countries is highly contaminated with household and industrial wastes,
fecal bacteria, residues of fertilizers and insecticides etc. Thousands of people, especially children, died offecal bacteria, residues of fertilizers and insecticides etc. Thousands of people, especially children, died of
water borne diseases every year.water borne diseases every year.
So, use of tube-well water started during the British colonial era. But few years ago it has been known that theSo, use of tube-well water started during the British colonial era. But few years ago it has been known that the
shallow aquifer layers of Bangladesh and some other countries are highly contaminated with Arsenic poison.shallow aquifer layers of Bangladesh and some other countries are highly contaminated with Arsenic poison.
Deep tube-well may also be contaminated with arsenic and toxic heavy metallic minerals. Besides this, poorDeep tube-well may also be contaminated with arsenic and toxic heavy metallic minerals. Besides this, poor
rural people cannot afford deep wells. The aquifer layers of about 62 districts out of 64 of Bangladesh arerural people cannot afford deep wells. The aquifer layers of about 62 districts out of 64 of Bangladesh are
contaminated with Arsenic poison.contaminated with Arsenic poison.
As alternatives options rain water harvesting system and pond-sand filters, traditional filters etc. are supplied byAs alternatives options rain water harvesting system and pond-sand filters, traditional filters etc. are supplied by
some NGOs. The Government and World Health Organization (WHO) allow scientifically permissible chemicalssome NGOs. The Government and World Health Organization (WHO) allow scientifically permissible chemicals
to kill bacteria for drinking water purification from surface water.to kill bacteria for drinking water purification from surface water.
Questions have been arisen and published in news media about durability of many Arsenic mitigation filterQuestions have been arisen and published in news media about durability of many Arsenic mitigation filter
composites with Arsenic filtering medium. Because, all the filtering media have their definite life of activity, aftercomposites with Arsenic filtering medium. Because, all the filtering media have their definite life of activity, after
certain period of time they are not able to mitigate Arsenic of raw water. After exhaustion any filtering mediumcertain period of time they are not able to mitigate Arsenic of raw water. After exhaustion any filtering medium
needs regeneration and the filter needs to wash by backwash system.needs regeneration and the filter needs to wash by backwash system.
Regeneration waste or backwash sludge of an Arsenic mitigation plant contains sufficient Arsenic or toxicRegeneration waste or backwash sludge of an Arsenic mitigation plant contains sufficient Arsenic or toxic
minerals. To protect the environment, the waste or sludge should be trapped in a waste management system.minerals. To protect the environment, the waste or sludge should be trapped in a waste management system.
So, any water purification process for drinking purpose should not be continued without proper waterSo, any water purification process for drinking purpose should not be continued without proper water
purification knowledge, appropriate devices of purification, permissible chemicals for treatment, backwashpurification knowledge, appropriate devices of purification, permissible chemicals for treatment, backwash
system, regeneration system, waste management unit, regular raw water and treated water test facilities, trainedsystem, regeneration system, waste management unit, regular raw water and treated water test facilities, trained
persons for operation etc.persons for operation etc.
But actually speaking, in rural water purification systems of Bangladesh there are no such facilities to makeBut actually speaking, in rural water purification systems of Bangladesh there are no such facilities to make
safe drinking water with internationally approved water quality parameters.safe drinking water with internationally approved water quality parameters.

13. Arsenic-Crisis Group PublicationArsenic-Crisis Group Publication
 So, I started research work, since 2000, (a) for inventing a filter composite with filtering compounds to absorbSo, I started research work, since 2000, (a) for inventing a filter composite with filtering compounds to absorb
Arsenic and Toxic Minerals of ground water, (b) for developing cost-effective Arsenic test kit, and (c) anArsenic and Toxic Minerals of ground water, (b) for developing cost-effective Arsenic test kit, and (c) an
environmentally friendly Arsenic waste/sludge management system.environmentally friendly Arsenic waste/sludge management system.
This filter composite can also be used for water purification of rivers, reserved ponds, hilly springs and flood byThis filter composite can also be used for water purification of rivers, reserved ponds, hilly springs and flood by
using internationally permissible sodium hypochlorite and coagulant to remove bacteria, bad odour, colour andusing internationally permissible sodium hypochlorite and coagulant to remove bacteria, bad odour, colour and
turbidity. The project is made of modern scientific equipment. In saline areas extra expenditure is required to setturbidity. The project is made of modern scientific equipment. In saline areas extra expenditure is required to set
up Reverse Osmosis (RO) system after the filter composite to remove salinity of water.up Reverse Osmosis (RO) system after the filter composite to remove salinity of water.
Bangladesh Government has given patent for my invention. Some local donors have donated such waterBangladesh Government has given patent for my invention. Some local donors have donated such water
purification projects for schools, colleges, orphanages and rural villages.purification projects for schools, colleges, orphanages and rural villages.
It is hoped that if your Organization takes initiative to establish cost-effective projects of Arsenic Mitigation, IronIt is hoped that if your Organization takes initiative to establish cost-effective projects of Arsenic Mitigation, Iron
Removal and Surface Water Purification for the victim of Arsenic poison and crisis of safe drinking water, byRemoval and Surface Water Purification for the victim of Arsenic poison and crisis of safe drinking water, by
using above mentioned cost-effective modern technology, this will ensure the sustainable living environment inusing above mentioned cost-effective modern technology, this will ensure the sustainable living environment in
rural villages of these victims.rural villages of these victims.
Thanking you,Thanking you,
Sincerely yours,Sincerely yours,
Shyamal Chowdhury.Shyamal Chowdhury.
S S SupervisionS S Supervision
Mohammadi Building (2nd Floor),Mohammadi Building (2nd Floor),
613/A, Commerce College Road,613/A, Commerce College Road,
Chittagong, Bangladesh.Chittagong, Bangladesh.
Email:sssupervision@yahoo.com, ssfoundationbd@gmail.comEmail:sssupervision@yahoo.com, ssfoundationbd@gmail.com
 Posted by:Posted by: sssupervision@yahoo.comsssupervision@yahoo.com
VISIT YOUR GROUP

14. News of InventionNews of Invention

15. News of InventionNews of Invention

16. Arsenic in BangladeshArsenic in Bangladesh

17. Arsenic, Iron, Bacteria Removal Plant, Japanese Orphanage, ChittagongArsenic, Iron, Bacteria Removal Plant, Japanese Orphanage, Chittagong

18. Raw Water TanksRaw Water Tanks

19. Arsenic, Iron, Bacteria Purification Plant, Mohamuni A P High School,Arsenic, Iron, Bacteria Purification Plant, Mohamuni A P High School,
Chittagong, BangladeshChittagong, Bangladesh

20. Water Treatment Plant, Mohamuni Village,Chittagong, BangladeshWater Treatment Plant, Mohamuni Village,Chittagong, Bangladesh

21. Students of Mohamuni School Drinking Treated WaterStudents of Mohamuni School Drinking Treated Water

22. Students of Mohamuni School Drinking Treated WaterStudents of Mohamuni School Drinking Treated Water

23. NEW ARSENIC TEST KITNEW ARSENIC TEST KIT

24. Orphans of Japanese Orphanage Drinking Purified WaterOrphans of Japanese Orphanage Drinking Purified Water

25. Orphans of Japanese Orphanage Drinking Purified WaterOrphans of Japanese Orphanage Drinking Purified Water

26. Orphans of Japanese Orphanage Drinking Purified WaterOrphans of Japanese Orphanage Drinking Purified Water

27. Headmaster is discussing with officers of WASH & BRAC about disease burdenHeadmaster is discussing with officers of WASH & BRAC about disease burden
abetment of his students by using purified water of WTP & Hand Washabetment of his students by using purified water of WTP & Hand Wash

28. A TEACHER IS BRIEFING TO FOREIGN DELIGATE ABOUT DISEASE BURDEN ABATEMENTA TEACHER IS BRIEFING TO FOREIGN DELIGATE ABOUT DISEASE BURDEN ABATEMENT
BY PURIFIED WATER OF WTP & HAND WASHBY PURIFIED WATER OF WTP & HAND WASH
A teacher is briefing about WTP & Hand Wash to the Consultants ofA teacher is briefing about WTP & Hand Wash to the Consultants of
WASH, BRAC & IRCWASH, BRAC & IRC

29. Consultant of Importing & Installation of Small Bottle Filling Machine ofConsultant of Importing & Installation of Small Bottle Filling Machine of
Confidence Mineral Water, KhagrachariConfidence Mineral Water, Khagrachari

30. Project Consultant: Reverse Osmosis (RO) System for Desalinization and Filtering SystemProject Consultant: Reverse Osmosis (RO) System for Desalinization and Filtering System
of Confidence Mineral Water, Khagrachariof Confidence Mineral Water, Khagrachari

31. INSTALLATION CONSULTANT: MICROBIOLOGICAL LAB, CONFIDENCE MINERAL WATER,INSTALLATION CONSULTANT: MICROBIOLOGICAL LAB, CONFIDENCE MINERAL WATER,
KHAGRACHARIKHAGRACHARI

32. Correction of Chemical treatment process ofCorrection of Chemical treatment process of
ETP, S Alam Refined Sugar Mill, ChittagongETP, S Alam Refined Sugar Mill, Chittagong
Before Treatment After Treatment

33. Correction Of Chemical Treatment process of ETP for Colour Removal ofCorrection Of Chemical Treatment process of ETP for Colour Removal of
Effluent, Super Knitting, T K GroupEffluent, Super Knitting, T K Group

34. Consultant of Erection: ETP of Textile Industry, CEPZ, Chittagong,Consultant of Erection: ETP of Textile Industry, CEPZ, Chittagong,
BangladeshBangladesh

35. Correction of Chemical treatment process of Heavy Duty IronCorrection of Chemical treatment process of Heavy Duty Iron
Removal Plant, CEPZ, Chittagong, BangladeshRemoval Plant, CEPZ, Chittagong, Bangladesh

36. Children of Japanese Orphanage are washing hands by developedChildren of Japanese Orphanage are washing hands by developed
cheap hygienic Neutral Pcheap hygienic Neutral PHH
Liquid Hand-Wash before mealLiquid Hand-Wash before meal
Disease Burden Abatement

37. Boys of Japanese Orphanage using developed cheap hygienic Neutral PBoys of Japanese Orphanage using developed cheap hygienic Neutral PHH
Liquid Hand Wash after return from latrineLiquid Hand Wash after return from latrine
Disease Burden Abatement

38. Cheap Hygienic Neutral PCheap Hygienic Neutral PHH
Liquid Floor CleanerLiquid Floor Cleaner
Disease Burden Abatement

39. Concentrated & Neutral PConcentrated & Neutral PHH
Cheap Liquid Detergent forCheap Liquid Detergent for
Garments & Utensil WashGarments & Utensil Wash

40. Please, ContactPlease, Contact
Shyamal ChowdhuryShyamal Chowdhury
D P EnterpriseD P Enterprise
64,Sanmar Spring Garden (264,Sanmar Spring Garden (2ndnd
Floor)Floor)
Jamal Khan, ChittagongJamal Khan, Chittagong
Chittagong, Bangladesh.Chittagong, Bangladesh.
Email:Email:
sssupervision@yahoo.com,sssupervision@yahoo.com,
ssfoundationbd@gmail.comssfoundationbd@gmail.com
Mob: +8801195033973 +8801874440503Mob: +8801195033973 +8801874440503

41. BibliographyBibliography
Shyamal ChowdhuryShyamal Chowdhury
B. Sc. (Hons.), M. Sc. (Chemistry)B. Sc. (Hons.), M. Sc. (Chemistry)
(a)(a) Served as a Chemist in Jalpha Pharmaceutical Laboratory, Sylhet,Served as a Chemist in Jalpha Pharmaceutical Laboratory, Sylhet,
Bangladesh, 1985 to 1986.Bangladesh, 1985 to 1986.
(b)(b) Served as a Chemist in Eureka Pharmaceuticals Ltd., Chittagong,Served as a Chemist in Eureka Pharmaceuticals Ltd., Chittagong,
Bangladesh, 1987 to 2011.Bangladesh, 1987 to 2011.
(c)(c) Performed “ Pharmaceutical Technology and Quality Control TrainingPerformed “ Pharmaceutical Technology and Quality Control Training
Course” and current Good Manufacturing Practice , cGMP sponsored byCourse” and current Good Manufacturing Practice , cGMP sponsored by
the Government of the People’s Republic of Bangladesh and Worldthe Government of the People’s Republic of Bangladesh and World
Health Organization ( WHO) in 1985 and 2011.Health Organization ( WHO) in 1985 and 2011.
(d(d) Performed research works for) Performed research works for
(i) Arsenic Water Filtering Medium (Patented)(i) Arsenic Water Filtering Medium (Patented)
(ii) Iron Water Filtering Medium(ii) Iron Water Filtering Medium
(iii) Arsenic Test kit (Patented)(iii) Arsenic Test kit (Patented)
(iv) Arsenic Filter Regeneration Process(iv) Arsenic Filter Regeneration Process
(v) Butane Gas Purification Filter(v) Butane Gas Purification Filter
(vi) Weak Acidic Balanced Fertilizer (NSP).(vi) Weak Acidic Balanced Fertilizer (NSP).
(e)(e) Serving as chemist and consultant of industrial Water Treatment PlantServing as chemist and consultant of industrial Water Treatment Plant
(WTP), Effluent Treatment Plant (ETP) and Mineral Water Plant.(WTP), Effluent Treatment Plant (ETP) and Mineral Water Plant.

42. ThanksThanks