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ETP Q&A || sawal jawab ||  

ETP Knowledge Junction
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Hello guys the video is based on the questions you asked in comments section of various videos of science classes.
#etpknowledgejunction
#science_classes
#sludge_volume_index
#chemical_oxygen_demand
#biochemical_oxygen_demand #Importance_of_BOD_and_COD #Wastewater_treatment #waste_water_treatment #activated_sludge_process
#sanjeet_rawat
#microorganisms_and_BOD
#food_and_mass_ratio
Watch the full videos and keep supporting the channel.
Biochemical oxygen demand::
• What is Biochemical ox...
Standard procedure for analysis of mlvss and mlss::
• Procedure of MLSS and ...
Standard procedure for Analysis of Dissolve Oxygen::
• Dissolved oxygen analy...
Standard procedure for chemical oxygen demand::
• Chemical oxygen demand...
effluent treatment plant :: • What is Effluent treat...
you can ask any question to us by social media and we will try to solve your queries so please follow us on social media.
Stay tuned with the science classes by following on social media:
Facebook:: / scienceclassesofficial
Facebook Sanjeet Rawat::
/ sanjeet.rawat.7
Instagram:: / iamsanjeetrawat (personal)
/ etpknowledgejunction
facebook Group::
/ 154870968535789
________________________________________________
•What is MLSS & MLVSS?
•How to control COD?
•What is SVI?
•How to develop MLSS?
•COD of Boiler feed water.
•How to control excess foaming in aeration tank?
•How to analyse high COD?
•How to control floating sludge in secondary clarifier?

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29 мар 2020

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Комментарии : 393   
@vaibhavpatil449
@vaibhavpatil449 2 года назад
Bohot hi badhiya aur helpfull video banaya hai sir ji aap ne thank you so much 💞 u n God 🙏 bless you
@ETPKnowledgeJunction
@ETPKnowledgeJunction 2 года назад
Thanks dost... Stay connected with channel... Aap Facebook page pr bhi review de sakte ho ..❤️
@nebulaarts1639
@nebulaarts1639 Год назад
Good.Keep it up.👌👌
@sgm4324
@sgm4324 3 года назад
Thankyou sir well done,good job
@ETPKnowledgeJunction
@ETPKnowledgeJunction 2 года назад
If it helps you then you can review it on Google. Please share your experiences on Google. g.page/r/CVcxcj5sxUuTEA0
@veerpancheshwar6443
@veerpancheshwar6443 Год назад
Very good bro it's really helpful
@ETPKnowledgeJunction
@ETPKnowledgeJunction Год назад
Thanks dear stay connected ❤️
@dnyaneshwarmanal5995
@dnyaneshwarmanal5995 3 года назад
You ae really doing a very great job Sir
@ETPKnowledgeJunction
@ETPKnowledgeJunction 3 года назад
Thanks please..stay connected
@Ajitsadangi4839
@Ajitsadangi4839 6 месяцев назад
U r have a good teacher ability
@ETPKnowledgeJunction
@ETPKnowledgeJunction 5 месяцев назад
Thanks dear
@manishgohil4900
@manishgohil4900 3 года назад
Sir what is organic load in Wastewater treatment?How to calculate it?
@umeshpatil5407
@umeshpatil5407 3 года назад
ETP main career hain kya??
@pradeepkushwaha8433
@pradeepkushwaha8433 2 года назад
Very nice sir
@farhaankhan9184
@farhaankhan9184 3 года назад
I am really happy to your job
@nileshshelar2994
@nileshshelar2994 2 года назад
Good explanations
@ETPKnowledgeJunction
@ETPKnowledgeJunction 2 года назад
Thanks dost... stay connected
@prasadhande8310
@prasadhande8310 4 года назад
Sir fm ratio kaise calculate karte hai??
@patelhabib4692
@patelhabib4692 4 года назад
SIR, TOTAL AMONICAL NITROGEN JYADA HO JAYE TO KESE DOWN KARNEKA.
@farhaankhan9184
@farhaankhan9184 3 года назад
Sir I am working in a slaughter house.And I am working last 8 years in etp I want to ask you that what should tha dose of farric Alum and caustic cristal
@MohdSajid-rl1fp
@MohdSajid-rl1fp 3 года назад
Sir meb hi 3 year she etp pe kam krta hu aur pura etp.chla sakta hu pr 12 pass hu pr me jana chahta hu kya etp kya koi coursh he 12 ke bad
@acharyadeepakthespiritual442
@acharyadeepakthespiritual442 2 года назад
Etp treatment water colour is white kya dosing kre
@roshanrai2318
@roshanrai2318 3 года назад
If milky water come in sequence batch reactor then What can we do... Plz....rpy me sir
@kalyanighogarepatil7909
@kalyanighogarepatil7909 3 года назад
Sir According to my experience I have seen more importance are given for production and very less importance given for waste water or etp and this section r directly related to public n environment
@noor03250
@noor03250 3 года назад
But day by day its demand increase due to gov. Regulations
@vickramlondhe5440
@vickramlondhe5440 Год назад
Sir biological etp me paani clear karne ke aur ph maintan karne liye lime aur alum ke alava kya sulfamic powder use kar sakte hai kya aur dusra koi chemical honga to please batao
@rakeshdeshmukh7622
@rakeshdeshmukh7622 4 года назад
How to calculate etp plant capacity
@AshokKumar-gb5qp
@AshokKumar-gb5qp 3 года назад
Sir,Sludge is not settling in aeration and secondary clarifier please suggest
@ETPKnowledgeJunction
@ETPKnowledgeJunction 3 года назад
ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-uDmOwjY1sMo.html
@nirmalkatiyar2486
@nirmalkatiyar2486 3 года назад
How to solve secondary clarifier sludge bulking
@studyv3education789
@studyv3education789 2 года назад
Sir distillery me Mee plant ka condensate ke pane ko kese clear kerte hai
@jigneshpatel1995
@jigneshpatel1995 4 года назад
COD ke liye phenolics components ke alawa aur kon konse matter effluent me rahte hai?
@sunilbhardwaj5252
@sunilbhardwaj5252 3 года назад
sir how to grow bacteria in aeration tank . i have bioculture powder
@monuyogi25
@monuyogi25 3 года назад
Sir Etp plant ki capacity kese nikalte h
@prahladsinghchouhan2821
@prahladsinghchouhan2821 3 года назад
Sie ETP MBR Aabhi bhut foming kar raha he sir kaya Reagan ho saktha ...?
@VinodKumar-wy9ks
@VinodKumar-wy9ks 4 года назад
Sir please one video mak a BOD analysis with titertion please sir
@Surendrayadav-gb2cf
@Surendrayadav-gb2cf Год назад
Please provided the interview questions for fermentation and distillation of alcohol industry
@ETPKnowledgeJunction
@ETPKnowledgeJunction Год назад
I don't have much idea about the industry...but you can join our telegram support group etp knowledge junction where many professionals are available to help you.
@sumityadav-yd4io
@sumityadav-yd4io 4 года назад
Sir agar testing k parameter k bar me bta do ki konsi testing se ky hota h kya fayada h kya nuksaam
@sachingaikwad9964
@sachingaikwad9964 4 года назад
Sir safety diploma regular or external matter krta hai kya in professional life or in starting of career
@ETPKnowledgeJunction
@ETPKnowledgeJunction 4 года назад
It matters
@manojdhumal9530
@manojdhumal9530 4 года назад
Nice sir
@ETPKnowledgeJunction
@ETPKnowledgeJunction 4 года назад
Thanks dear
@Ajitsadangi4839
@Ajitsadangi4839 6 месяцев назад
Etp ko sikhne ke kya jan na important hai.. please reply
@aamirhussain8909
@aamirhussain8909 4 года назад
Very nise sir Sir g microbiology laboratory ka kuch topic
@vijaymalik2892
@vijaymalik2892 4 года назад
Sir hamara water Ka kalar change nai ho ray ha ETP Ka Kish charge ke doging karni ha Jo kalar change ho jaya
@purvanshvlog
@purvanshvlog 3 года назад
Sir aeration me air,DAP,Uriya air nitrogen ko kaise calculate karenge ki hamara Fooding sahi hi
@nareshbollipo999
@nareshbollipo999 3 года назад
Sir plz how can chemical dosing monitering formulas secondry tertairy clarifires also plz tell me sir
@rajan1432r
@rajan1432r Год назад
Sir ek aap video banaye jisme Bod .cod .tds mlss jar testing ka
@vipinsingh5890
@vipinsingh5890 4 года назад
Ek video anerobic etp ka banao
@devendrakumarsingh645
@devendrakumarsingh645 4 года назад
Sir srt and mcrt and sludge blowdown calculation bataiye pleased
@3207amit
@3207amit 4 года назад
Plz explain fm ratio calculation with example..
@ETPKnowledgeJunction
@ETPKnowledgeJunction 4 года назад
ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-uuYHFK_Gvo0.html Example in video description.
@JitenderKumar-nj1ff
@JitenderKumar-nj1ff 3 года назад
Sir etp m low ph chla gya pani ka colour change ho gya kaise thik hoga
@amitpayra1895
@amitpayra1895 4 года назад
Sir, secondary Clarifier may algae generate hona rukh na ka leay kya korna chi y
@vaibhavpatil449
@vaibhavpatil449 3 года назад
High cod ko kaise down kare Please bataye sir
@sgm4324
@sgm4324 3 года назад
What's the indication of low do level ?
@nandannandan9880
@nandannandan9880 2 года назад
Namaste sir mujhe ya Jaana Hai ki stp plant ke sbr me svi kitna se kitna tk hona chahiye And mujhe vi Jaana Hai ki svi ko kese increase kiya jaye Mera sbr me 150 Sv 30 hai but mlss 10560 ho jata hai kyou ki sewage ke sath send vi aa raga hai but fir vi koei to rasta hoga ki svi increase kese karu plz help me
@faiyazkhan9569
@faiyazkhan9569 Год назад
Sir, what is MLR in ETP process??
@MusicdilseJaiShreeRam
@MusicdilseJaiShreeRam 4 года назад
Dear Sir, Thank you .Mera question ye he ki ,STP MBBR tank me SV-30 kitni honi chahiye or PH kitna honi chahiye , please answer me
@ETPKnowledgeJunction
@ETPKnowledgeJunction 2 года назад
If it helps you then you can review it on Google. Please share your experiences on Google. g.page/r/CVcxcj5sxUuTEA0
@durgeshkumarshukla6137
@durgeshkumarshukla6137 3 года назад
Aur sir chemical jaise colar bnane ke liye kitane ph,tds,bod,aur cod kitni honi chahiye
@meetkyada4651
@meetkyada4651 3 года назад
Sir I'm b.sc. chemistry graduate Can I work in etp ? And m.sc. environmental is useful for etp ?
@ETPKnowledgeJunction
@ETPKnowledgeJunction 3 года назад
Yes u can...msc in EVS is very useful in career in environment
@Meet-ef1jr
@Meet-ef1jr 4 года назад
Hlw sir me 12th ke bad DDT diploma in dairy tech. Kiya hua h ignou se or ignoue se hi BA kiya h to me puchna chahta hu is line me age badne ke liye or kya kar sakte h safety diploma usko kare kya plz is barr me btaye ge to help hogi kafi me kafi presaan hu sir apne future ko leke or ye bhi btaye agar ek jagh kam karke futur nhi najar a rha h is line me to jump kare kisi or plant me job search kre isi line me tell me
@guruji8390
@guruji8390 Год назад
How to make ppm dose
@durgeshkumarshukla6137
@durgeshkumarshukla6137 3 года назад
Sir boilar water ke liye hadnes and cod,aur bod Kitna hona chahiye
@Itspradeepgore_01
@Itspradeepgore_01 3 года назад
Hi sir Mai distilleries biogas chemist ke pad pr work kar rha hu pr muze biogas ke process ke bare me Puri jankari chahiye Aur ek bat kya etp ke liye koi deploma hai
@prasadhande8310
@prasadhande8310 4 года назад
Fm ratio kaise check kare??
@pankajkumar2210
@pankajkumar2210 3 года назад
Sir etp me others country me bhi job mil jati hai kay
@sagarsalunkhe5859
@sagarsalunkhe5859 2 года назад
What happens to Areation black
@DeepakThakur-gt7pm
@DeepakThakur-gt7pm 3 года назад
Effluent m alum & poly ki dosing kitne % ki karte h
@Mindblowinganuj
@Mindblowinganuj 3 года назад
Sir 1000 ltr water m kitna caoh 2 dale
@Meet-ef1jr
@Meet-ef1jr 3 года назад
Etp me 3 sal hogye h sir kya me health safety course kar sakta hu mne DDT diploma in dairy tech.kiya hua h salry increasing or achha line mil jayega mujhe kya
@ETPKnowledgeJunction
@ETPKnowledgeJunction 3 года назад
BA ya BSc. Hona chahiye bss
@dantanijagdishkumar3586
@dantanijagdishkumar3586 4 года назад
Sir doshing me lph ppm kese set karte he
@mryunuskhan1990
@mryunuskhan1990 4 года назад
What is aerobic and Anaerobic process.?
@omveerkashayp8404
@omveerkashayp8404 2 года назад
Thanks ser
@ETPKnowledgeJunction
@ETPKnowledgeJunction 2 года назад
You can join telegram group ETP Knowledge Junction and personally msg me on instagram iamsanjeetrawat.
@farhaankhan9184
@farhaankhan9184 3 года назад
Sir ek video bnaye jisme harek tank ke bare mai detail mai btaye jaise har tank ka hrt kiya hai kon sa bacteria hai kiya parameters hone chiye har ek tank ka kiya kaam hai
@ETPKnowledgeJunction
@ETPKnowledgeJunction 3 года назад
Sure stay connected
@tinu-hb3lz
@tinu-hb3lz 2 года назад
Dear sir. Is Hardness reduction in DAP process of ETP is possible?....How
@ETPKnowledgeJunction
@ETPKnowledgeJunction 2 года назад
What is dap here?
@SunilSingh-lu4oy
@SunilSingh-lu4oy 9 месяцев назад
Sir airetion tan me setling nahi badh raha hai
@ankitkumarmishra4669
@ankitkumarmishra4669 2 года назад
Sir COD high aaye to kya karna chahiye..? Aeration tank ka DO range kitna hoga..? Aerate tank ka DO high to kya karna chahiye...?
@ETPKnowledgeJunction
@ETPKnowledgeJunction 2 года назад
ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-h1F8FHrOlUo.html
@narpatsingh7052
@narpatsingh7052 3 года назад
Etp kitne stage par hota hai
@pankajlohar1894
@pankajlohar1894 4 года назад
धन्यवाद सर खूप छान माहीती आहे 👍
@ETPKnowledgeJunction
@ETPKnowledgeJunction 4 года назад
तुमि पन विचारू शकतो।
@pankajlohar1894
@pankajlohar1894 4 года назад
@@ETPKnowledgeJunction सर तुम्ही अजून विडिओ बनवत राहा , खूप शिकायला मिळतंय तुमच्या कडून तेही सोप्या भाषेत
@ETPKnowledgeJunction
@ETPKnowledgeJunction 4 года назад
Thanks dear
@Itspradeepgore_01
@Itspradeepgore_01 3 года назад
Sir Kya ap hame anaerobic biogas digester ke pure anyalysis ke bare me Bata dijiye Jaise Ki how to limit of caustic How to limit of cod Etc
@SAIFALI-xh5qx
@SAIFALI-xh5qx Год назад
Sir ETP plant operator ke liye kya qualification honi chahiye..... environment study/environment science....maine B.A kiya hai economics & history se....agr main environment studies me M.A benefits rhega... please tell me.
@ETPKnowledgeJunction
@ETPKnowledgeJunction Год назад
Environmental job ke liye science background wale log ho prefer kiye jate hn. Apka kaam bn sakta h.. agar aap kuch technical job nahi karte hn to. Non technical hone se aapki growth Limited ho jati h. Thanks dear stay connected ❤️
@ketanmohite7401
@ketanmohite7401 2 года назад
How design stp and etp plant...?
@ETPKnowledgeJunction
@ETPKnowledgeJunction 2 года назад
First we have to master in wastewater management. Have to know about all the process deeply. This is so simple 😊 If you are a professional, we can work together. sanjeetrawat684@gmail.com . . Join telegram group ETP Knowledge Junction and personally msg me on instagram iamsanjeetrawat
@amarjeetram4909
@amarjeetram4909 3 года назад
Sir Aertion tank ka pani thora mota ho gaya hai aur chip chip karta he eska kya reason ho sakta hai
@vijaybhan8202
@vijaybhan8202 3 года назад
Mlss and mlvss kitna hona chahiye
@sachinsharma-zc2bx
@sachinsharma-zc2bx 3 года назад
Provide process of ETP aerobic system with proper define function of ph cod bod mlss mlvss SLI fm ratio DO level and jar rest
@ETPKnowledgeJunction
@ETPKnowledgeJunction 3 года назад
ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-0MPfrQV1df0.html
@dipakkhatri3581
@dipakkhatri3581 2 года назад
Who to control Aeration tank outlet sample turbidity?
@ETPKnowledgeJunction
@ETPKnowledgeJunction 2 года назад
Hi dipak... Dedicated video on turbudity is there in Playlist. And stay connected..
@DharmendraSingh-zm8jh
@DharmendraSingh-zm8jh 4 года назад
Cod me jitne bhi chemical hotel hai. Wo Kam Kya large hai.
@maheshprajapati5515
@maheshprajapati5515 3 года назад
Sir vfa kaise nikalte h our lab testing process kaise hota h
@sandeepbadgujar1995
@sandeepbadgujar1995 3 года назад
Mee plant pe bhi yek video banaye sir
@sanjaykumarrewadia8556
@sanjaykumarrewadia8556 4 года назад
sir Kya mbbr technology me sludge re circulars hota h or kyo
@ETPKnowledgeJunction
@ETPKnowledgeJunction 4 года назад
Sorry for late response,
@kapilvashiasta1906
@kapilvashiasta1906 2 года назад
Sir etp plant design kaise krte h. Par bhi video banoaao
@ETPKnowledgeJunction
@ETPKnowledgeJunction 2 года назад
Hi dost.. you can join telegram group ETP Knowledge Junction
@hirendranikose1928
@hirendranikose1928 2 года назад
Sir ye trade kaha se karte
@ramawtar6172
@ramawtar6172 3 года назад
Sir E.T.P ka D.O.test karane keliye ham khan se water lekar test kara shakte hai aur D.O. ka full form bataye
@Rashid7645
@Rashid7645 3 года назад
Water airation tank mai kahi se bhi sample le skte hai Kyunki yh poore tank mai hota hai and DO means Dissolve oxygen
7 месяцев назад
Sir., In my ETP there is jelly type biomass formed & also white foaming. What is reason for this jelly formation
@ETPKnowledgeJunction
@ETPKnowledgeJunction 7 месяцев назад
The formation of jelly-like biomass and white foaming in an Effluent Treatment Plant (ETP) can be indicative of various issues in the treatment process. Here are some possible reasons and solutions: **Possible Reasons:** 1. **Filamentous Bacteria Overgrowth:** - **Reason:** Overgrowth of filamentous bacteria can lead to the formation of a jelly-like biomass. - **Solution:** Adjust the microbial population by optimizing aeration, nutrient levels, and pH. Consider using specific microbial products to control filamentous bacteria. 2. **Nutrient Imbalance:** - **Reason:** Imbalance in nutrient levels, particularly nitrogen and phosphorus, can contribute to biomass formation and foaming. - **Solution:** Conduct a nutrient analysis and adjust the nutrient dosing to achieve a balanced nutrient ratio. 3. **Aeration Issues:** - **Reason:** Inadequate or uneven aeration can lead to localized anaerobic conditions, causing foaming. - **Solution:** Optimize aeration systems, check diffuser efficiency, and ensure proper mixing to maintain aerobic conditions. 4. **pH Fluctuations:** - **Reason:** pH variations can impact microbial activity and favor the growth of certain organisms. - **Solution:** Monitor and control pH levels within the optimal range for biological treatment. 5. **Organic Overloading:** - **Reason:** High organic load can overwhelm the treatment system, leading to biomass overgrowth and foaming. - **Solution:** Ensure that the influent organic load is within the designed capacity of the ETP. Consider adjusting the flow or implementing pretreatment if necessary. 6. **Presence of Surfactants:** - **Reason:** Surfactants in the influent can contribute to foam formation. - **Solution:** Identify and minimize the source of surfactants. Consider using antifoaming agents if necessary. **Actions to Take:** 1. **Microbial Analysis:** - Conduct a microbial analysis to identify the composition of the biomass and determine if specific types of bacteria are causing issues. 2. **System Optimization:** - Optimize operational parameters, including aeration, pH, and nutrient levels, based on the characteristics of the wastewater. 3. **Foam Control Agents:** - Consider using foam control agents or antifoaming agents to address excessive foaming temporarily while underlying issues are resolved. 4. **Regular Monitoring:** - Implement a regular monitoring program to assess the performance of the ETP and make adjustments as needed.
@sahidurzzaman7266
@sahidurzzaman7266 6 месяцев назад
Hi
@RUSHABH8460290014
@RUSHABH8460290014 3 года назад
Can you explain how to calculate dosing in ETP plant of poly, feso4, h2o2, fecl3, and urea and DAP in aeration tank
@tanjimsayyad5468
@tanjimsayyad5468 3 года назад
Yes please.. Same question
@kishanvadher6561
@kishanvadher6561 2 года назад
Yes same question
@ankurjaiswal9626
@ankurjaiswal9626 3 года назад
Liquofaction plat ke baare mai bataye.
@nareshbollipo999
@nareshbollipo999 3 года назад
Sir plz explani vfa procedure
@devkinandandumka3312
@devkinandandumka3312 2 месяца назад
SIR ETP mai lime aaur midea kitne time baad change hone chaiye
@hardiksinhdodiya6561
@hardiksinhdodiya6561 3 года назад
Hypo &poly &allum used Etp
@AnupKumar-tt2xc
@AnupKumar-tt2xc 3 года назад
COD kon sa tank mai Kam hota hai
@anupmajhi6961
@anupmajhi6961 2 года назад
Sir ! Main is company Mai Naya Aya hoon aur yaha ka Areation ka colour black aur becterialess hai to kya hum Areation tank ko Khali karke fresh pani bharkar usko cow dung ,juggery, ka dosing load karke becteria devlop ho sakega ?
@ETPKnowledgeJunction
@ETPKnowledgeJunction 2 года назад
Yes... Or you can use bio cultur...
@jigarbaria2293
@jigarbaria2293 2 года назад
Sir can you please share the formula for blower selection and how to decide number of diffusers to be installed in aeration tank.
@ETPKnowledgeJunction
@ETPKnowledgeJunction 2 года назад
Hi dear.. you can watch meenu Jain Lalitpur video on RU-vid.. about calculation of aeration system. Or join telegram group ETP Knowledge Junction
@deepaksoni4848
@deepaksoni4848 2 года назад
sir plx mustard oil water treatment par ek video bnaiye
@ETPKnowledgeJunction
@ETPKnowledgeJunction 2 года назад
Thanks Deepak.👍 plz mail on sanjeetrawat684@gmail.com . Plant process details and some photos and short videos bhejo.
@yraut730
@yraut730 3 года назад
Air tank kitana time off rakh sakte he 8 h
@kiranbaria4111
@kiranbaria4111 Год назад
Turbidity kese check kare.tirbiditi kya hai
@vishwakarmasound6151
@vishwakarmasound6151 2 года назад
Sir muje etp interview ko nikal na he to sir kyu app muche interview me puche chane Wale questions bata sakte ko
@ETPKnowledgeJunction
@ETPKnowledgeJunction 2 года назад
Fresher ke liye maine video bnai h... Aur ap meri baki ki videos bhi dekh sakte ho... Sari in formative hn... Aur cumminity tab pr questions dalta hu. .. You can join telegram group ETP Knowledge Junction and personally msg me on instagram iamsanjeetrawat.
@HimanshuKumar-cl1nt
@HimanshuKumar-cl1nt 2 года назад
Dear sir mera sabal h ki agar ETP plant ki final ki pH kam ho jaye to kya
@ETPKnowledgeJunction
@ETPKnowledgeJunction 2 года назад
To kya means!!!
@sandeepbadgujar1995
@sandeepbadgujar1995 3 года назад
Chemical etp me high cod ko control kaise kare
@surajpathak539
@surajpathak539 3 года назад
Sir mbbr tank miximam ph Kitana hona chahiye
@ETPKnowledgeJunction
@ETPKnowledgeJunction 3 года назад
7.5 to 8 is ideal
@amarjeetram4909
@amarjeetram4909 4 года назад
Sur. Arrtion tank me d.a.p urea kyou dalte hai
@ETPKnowledgeJunction
@ETPKnowledgeJunction 4 года назад
To maintain nitrogen and phosphorus
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