[72] Nesar Ahmad, “Kev hloov ntawm Tanneries los ntawm Lub Nroog Tseem Tsis Paub; Tsis muaj kev koom tes Los ntawm Qee tus tswv,” Bangladesh Observer, Lub Yim Hli 11, 2000. Luam tawm ntawm cov ntaub ntawv nrog Human Rights Watch.

Lub nroog thawj zaug tau tso cai tshaj tawm $ 22.5 lab nyob rau hauv daim ntawv cog lus dav dav rau txoj haujlwm Colonial Elementary thaum Lub Peb Hlis 2018. Lub nroog txoj cai txhim kho kev lag luam tab tom ua haujlwm thiab sib tham nrog cov neeg cog lus sawv cev ntawm lub tsev kawm ntawv txoj haujlwm.

Lub Hazaribagh tanneries muaj li ntawm 90 thiab 95 feem pua ​​​​ntawm tag nrho cov tanneries hauv Bangladesh.[4] Muaj ib tug puv tes ntawm tanneries nyob rau hauv Bangladesh sab nraum Hazaribagh, nyob rau hauv lwm qhov chaw ntawm Dhaka, raws li zoo raws li Jessore thiab Chittagong. Daim ntawv tshaj tawm no tsis hais txog cov tanneries.

Qhov phem tshaj ntawm cov Tshuag 500 cov teeb meem tuav tag nrho yog los ntawm cov neeg taug kev Panda's rear kawg. Tab sis Abarth tau txais ib qho kev tiv thaiv yob tau nyem rau hauv nws hnub thiab qhov sib txawv tam sim ntawd. Tshaj txhua qhov nruab nrab thiab txawm tias loj pob, Abarth tsuas yog hunkers down thiab mus. Thiab mus nyuaj.

Kuv ntsia qhov no thaum tsaug zog ntau dua, thiab pom tau tias muaj ntau cov hlau uas muaj zog tawm los ntawm 70K PSI. Kuv tau siv qhov kev xav tias 70K PSI yog qhov tsawg kawg nkaus rau ib ntus.

Ib txoj kev tshawb fawb ntxaws luam tawm xyoo 1999 tau txheeb xyuas cov qauv dej khib nyiab coj ncaj qha los ntawm 47 tanneries. Cov txiaj ntsig tau pom cov qib siab ntawm chromium, chloride, lead, sulfates, sulfides, nitrates, thiab zinc nyob rau hauv cov effluent. Piv txwv li, cov dej khib nyiab los ntawm ib qho chaw tannery muaj biochemical oxygen xav tau (BOD) nyeem ntawm 3,600 mg / L (tawm tsam Bangladesh tus qauv zoo rau tannery effluent ntawm 100 mg / L) thiab tshuaj lom neeg oxygen xav tau (COD) nyeem ntawm 9,300 mg / L. (tawm tsam tus qauv ntawm 200 mg / L). Kev nyeem ntawv siab BOD thiab COD txhais tau tias muaj cov pa oxygen tsawg dua hauv dej, uas ua rau cov dej hauv dej ua rau tuag taus.[16] Cov dej khib nyiab no muaj cov ntsiab lus ntau dhau ntawm cov qauv tso cai: chromium (4,043 mg / L, tiv thaiv tus qauv ntawm 2 mg / L), chloride (45,000 mg / L, tawm tsam tus qauv ntawm 600 mg / L), lead (1.944 mg. /L, tawm tsam tus qauv ntawm 0.1 mg / L), thiab sulfide (145 mg / L, tawm tsam tus qauv ntawm 1 mg / L).

Qhib lub qhov rooj yog txaus kom paub qhov no tsis yog lwm yam khoom ua si loj hlob ntawm Cinquecento. Nws yog ntau tshaj li txiv neej uas lub tsheb Tshuag, nrog ib tug tuab-rimmed, ca-hauv qab kauj log, tawv rooj zaum nrog impressive bolstering thiab txhuas pedal ntsib.

Ntau tus menyuam yaus ua haujlwm hauv tanneries vim kev txom nyem. Qee tus, txawm tias tsis yog tag nrho, tau tuaj rau Dhaka los ntawm cov chaw nyob deb nroog nrog lawv tsev neeg mus ua haujlwm.[166] Lwm tus nyob hauv tanneries.[167] Rau qee tus thawj coj tannery, cov menyuam sawv cev rau qhov pheej yig dua ntawm kev ua haujlwm. "Lawv siv lawv vim tias lawv tuaj yeem them lawv tsawg dua thiab vim lawv tseem hluas lawv yuav ua txhua yam lawv tau thov," Jhuki, tus neeg ua haujlwm tannery hauv nws nruab nrab-20s, hais txog cov menyuam yaus ua haujlwm hauv nws lub tsev tannery.[168]

Qhov kuv pom ntawm qhov kev xeem: thaum koj rub * rau ntawm tus pas nrig * nrog lub vise-grip, tus pas nrig yuav deformed (flattened) tremendously. Yog li cov epoxy ntawm txhuas thiab carbon fiber yuav tau loosened. Vim li cas koj ho tsis rub nrog lub vise-grip ntawm aluminium ntxig ntawm * lwm yam * kawg thiab siv tib cov kua nplaum ntawm ob qho kawg? Ib tug pas nrig nrog epoxy thiab ib qho nrog cov kua nplaum super, zoo li koj tau ua nrog cov ntawv tsis muaj kua nplaum. Tom qab ntawd koj tuaj yeem siv qhov kev nyab xeeb dua 'rub lub tshuab', zoo li cov ntsia hlau lossis lub tsheb jack, qhov twg cov hlau tsis tuaj yeem ya hauv koj lub ntsej muag.

Ntxiv rau qhov tsis muaj kev tswj hwm kev lag luam muaj kuab paug, kev tshawb fawb txij li thaum ntxov xyoo 1990 tau txheeb xyuas lwm yam teeb meem uas tau hais los ntawm tsab ntawv ceeb toom no. Lawv suav nrog:

Yog lawm. Kuv xav tias qhov peb tau hais dhau los yog li ntawm $ 120 lab txog $ 130 lab, yog tias koj nco qab. Thiab raws li ib tug ntawm koj ua tau raug ceeb toom kuv tias, qhov ntawd tsuas yog ib qho kev nce qib thiab nws tsis yog qhov nce ntxiv. Thiab txhua lub quarter, raws li peb ua, nws tau txais txiaj ntsig. Thiab thaum koj muag, txawm li cas los xij yog tus nqi tiag tiag thiab txawm li cas los xij yog qhov kev txwv ntawm cov luv nqi siv lossis lwm yam kev txiav tawm, tus lej yuav ib txwm sib txawv peb lub hlis twg rau peb lub hlis twg thiab qhov ntawd yog qhov peb tau tham hauv xov tooj kawg. Yog li cumulatively, peb tau ua tshaj $ 100 lab. Thiab raws li kuv tau hais, qhov no yog kwv yees li 70% los ntawm qhov kev xav ntawm IRR vim tias tawm ntawm tus thawj tswj hwm ntawm kwv yees li $ 550 lab, peb tsuas yog them txog $ 300 lab txog $ 320 lab thawj thiab ib qho ntxiv tom qab. Yog li lub hom phiaj - lwm txoj hauv kev yog 2% [FD] rau cov nyiaj ntawd - nyiaj seem. Yog li kuv xav tias lub hom phiaj tau ua tiav, [roundup.] Thiab cia siab tias, qhov no kuj qhia meej txog peb txoj haujlwm uas peb tau tswj hwm hauv 2 lub hlis dhau los.

Q: Kuv muaj ib qhov project uas yuav tsum tau vuam 6061-T6 extrusion rau lawv tus kheej thiab rau 6061-T6 daim ntawv. Kuv tus kws tshaj lij vuam hauv zos hais tias kuv tuaj yeem siv 4043 lossis 5356 muab tub lim hlau, tab sis qhov no tsis tsim nyog rau kuv. Tsis yog 5356 muaj zog dua?