{"id":4944,"date":"2025-10-30T01:52:10","date_gmt":"2025-10-29T22:52:10","guid":{"rendered":"https:\/\/hydrolite.eu\/?p=4944"},"modified":"2025-10-30T01:52:10","modified_gmt":"2025-10-29T22:52:10","slug":"metoda-de-pretratare-si-regenerare-a-rasinilor-alimentare","status":"publish","type":"post","link":"https:\/\/hydrolite.eu\/ro\/2025\/10\/30\/metoda-de-pretratare-si-regenerare-a-rasinilor-alimentare\/","title":{"rendered":"Metod\u0103 de pretratare \u0219i regenerare a r\u0103\u0219inilor alimentare."},"content":{"rendered":"

ZHEJIANG ZHENGGUANG INDUSTRIAL CO.,LTD <\/span><\/span><\/span>
\nNINGBO ZHENGGUANG RESIN CO.,LTD<\/span><\/span><\/span><\/h3>\n

Metod\u0103 de pretratare \u0219i regenerare a r\u0103\u0219inilor alimentare.<\/span><\/span><\/span><\/h2>\n

\u00cen procesul de producere a r\u0103\u0219inilor schimb\u0103toare de ioni, aceasta apare \u00eentotdeauna cu un num\u0103r mic de polimeri organici cu con\u021binut sc\u0103zut de ioni \u0219i impurit\u0103\u021bi anorganice. De asemenea, unele <\/span><\/span><\/span>impurit\u0103\u021bi pot ap\u0103rea odat\u0103 cu produsele \u00een timpul transportului \u0219i umplerii. Aceste impurit\u0103\u021bi vor fi eliberate la \u00eenceputul utiliz\u0103rii \u0219i vor afecta apoi calitatea apei \u0219i a produselor rezultate. Prin urmare, toate r\u0103\u0219inile noi trebuie s\u0103 treac\u0103 printr-un proces de pretratare \u00eenainte de utilizare. <\/span><\/span>R\u0103\u0219inile schimb\u0103toare de ioni<\/span><\/span><\/a> trebuie pretratate pentru a elimina impurit\u0103\u021bile \u00eenainte de utilizare \u0219i pentru a asigura o calitate stabil\u0103 a solu\u021biei de zah\u0103r. \u00cenainte de a umple <\/span><\/span><\/span>echipamentul cu r\u0103\u0219ini, toate coloanele de r\u0103\u0219ini schimb\u0103toare de ioni \u0219i toate conductele \u0219i valvele trebuie sp\u0103late cu ap\u0103 p\u00e2n\u0103 c\u00e2nd apa de ie\u0219ire este curat\u0103, asigura\u021bi-v\u0103 c\u0103 nu exist\u0103 scurgeri, apoi umple\u021bi coloana de schimb cu ap\u0103 p\u00e2n\u0103 la 1\/4 din \u00een\u0103l\u021bime, apoi \u00eenc\u0103rca\u021bi r\u0103\u0219inile \u00een coloan\u0103, introduce\u021bi apa de jos \u00een sus \u0219i apa de ie\u0219ire de sus \u00een r\u0103\u0219inile de sp\u0103lare invers\u0103, cl\u0103ti\u021bi p\u00e2n\u0103 c\u00e2nd nu mai exist\u0103 particule mici \u0219i apa este curat\u0103. (Pentru a evita ie\u0219irea particulelor mari de r\u0103\u0219in\u0103, v\u0103 rug\u0103m s\u0103 acorda\u021bi aten\u021bie ajust\u0103rii debitului) <\/span><\/span><\/span>
\n1. Umplerea \u0219i pre-tratarea r\u0103\u0219inilor<\/span><\/span><\/strong><\/span>
\n (1) \u00cenc\u0103rca\u021bi r\u0103\u0219inile \u00een coloan\u0103. \u00cenc\u0103rca\u021bi <\/span><\/span><\/span>
\nr\u0103\u0219ina \u00een coloana de schimb, utiliza\u021bi ap\u0103 de dedurizare pentru sp\u0103larea invers\u0103 a r\u0103\u0219inii p\u00e2n\u0103 c\u00e2nd apa de ie\u0219ire este curat\u0103. Utiliza\u021bi NaCL 8-10% pentru a \u00eenmuia r\u0103\u0219ina timp de 4-8 ore, apoi utiliza\u021bi ap\u0103 de dedurizare pentru a o sp\u0103la p\u00e2n\u0103 c\u00e2nd apa de ie\u0219ire este curat\u0103. <\/span><\/span><\/span>
\n(2) Pre-tratarea r\u0103\u0219inii cationice <\/span><\/span><\/span>
\n(2.1) Umple\u021bi coloana de schimb cu HCL 4% la o vitez\u0103 de 1,5-2,0 BV\/h, c\u00e2nd pH-ul este 1, continua\u021bi umplerea timp de 15 minute, apoi opri\u021bi. Dup\u0103 \u00eenmuierea r\u0103\u0219inii timp de 4-8 ore, utiliza\u021bi <\/span><\/span><\/span>ap\u0103 de dedurizare pentru a o sp\u0103la p\u00e2n\u0103 c\u00e2nd pH-ul este \u00een jur de 3. <\/span><\/span><\/span>
\n(2.2) Umple\u021bi coloana cu NaOH 4% la o vitez\u0103 de 1,5-2,0 BV\/h, c\u00e2nd pH- ul este <\/span><\/span><\/span>2 <\/span><\/span><\/span>, 14, continua\u021bi umplerea timp de 15 minute, apoi opri\u021bi. Dup\u0103 \u00eenmuierea r\u0103\u0219inii timp de 4-8 ore, <\/span><\/span><\/span>sp\u0103larea cu ap\u0103 dedurizat\u0103 p\u00e2n\u0103 c\u00e2nd pH-ul este \u00een jur de 10. <\/span><\/span><\/span>
\n(2.3) Umple\u021bi coloana cu HCL 4% la o vitez\u0103 de 1,5-2,0 BV\/h, c\u00e2nd pH-ul este <\/span><\/span><\/span>1, continua\u021bi umplerea timp de 15 minute, apoi opri\u021bi. Dup\u0103 \u00eenmuierea r\u0103\u0219inii timp de 4-8 ore, <\/span><\/span><\/span>sp\u0103la\u021bi coloana cu ap\u0103 dedurizat\u0103 p\u00e2n\u0103 c\u00e2nd pH-ul este \u00een jur de 3. P\u00e2n\u0103 \u00een acest moment, pre-tratarea r\u0103\u0219inii cationice este <\/span><\/span><\/span>finalizat\u0103, se poate procesa regenerarea ca de obicei. (Folosi\u021bi de dou\u0103 ori <\/span><\/span><\/span>agent de regenerare cu volum normal pentru a procesa prima regenerare) <\/span><\/span><\/span>
\n(3) Pre-tratarea r\u0103\u0219inii anionice <\/span><\/span><\/span>
\n(3.1) Umple\u021bi coloana cu NaOH 4% la o vitez\u0103 de 1,5-2,0 BV\/h, c\u00e2nd pH-ul <\/span><\/span><\/span>este 14, continua\u021bi umplerea timp de 15 minute, apoi opri\u021bi. Dup\u0103 \u00eenmuierea r\u0103\u0219inii timp de 4-8 ore, <\/span><\/span><\/span>se spal\u0103 coloana cu ap\u0103 dedurizat\u0103 p\u00e2n\u0103 c\u00e2nd pH-ul ajunge \u00een jur de 10. <\/span><\/span><\/span>
\n(3.2) Se umple coloana cu HCL 4% la o vitez\u0103 de 1,5-2,0 BV\/h, iar c\u00e2nd pH-ul ajunge la <\/span><\/span><\/span>1, se continu\u0103 umplerea timp de 15 minute, apoi se opre\u0219te. Dup\u0103 \u00eenmuierea r\u0103\u0219inii timp de 4-8 ore, se spal\u0103 coloana cu ap\u0103 dedurizat\u0103 <\/span><\/span><\/span>p\u00e2n\u0103 c\u00e2nd pH-ul ajunge \u00een jur de 3. <\/span><\/span><\/span>
\n(3.3) Se umple coloana cu NaOH 4% la o vitez\u0103 de 1,5-2,0 BV\/h, iar c\u00e2nd pH-ul ajunge…<\/span><\/span><\/span>14, continua\u021bi umplerea timp de 15 minute, apoi opri\u021bi. Dup\u0103 \u00eenmuierea r\u0103\u0219inii timp de 4-8 ore, <\/span><\/span><\/span>sp\u0103la\u021bi cu ap\u0103 dedurizat\u0103 p\u00e2n\u0103 c\u00e2nd pH-ul este \u00een jur de 10. P\u00e2n\u0103 \u00een acest moment, pretratarea anionilor este <\/span><\/span><\/span>finalizat\u0103, se poate procesa regenerarea ca de obicei. (Folosi\u021bi de dou\u0103 ori <\/span><\/span><\/span>agent de regenerare cu volum normal pentru a procesa prima regenerare) <\/span><\/span><\/span>
\n2. Procesul de operare a regener\u0103rii<\/span><\/span><\/span><\/strong>
\n (1) procesul de operare a r\u0103\u0219inii cationice<\/span><\/span><\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n
\n

Opera\u021biune<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Solu\u0163ie<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Debit (BV\/h)<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Volum (BV)<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

recuperarea zah\u0103rului<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Dedurizare ap\u0103<\/span><\/span><\/span><\/span><\/a><\/p>\n<\/td>\n

\n

2,0 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>4,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

1,5 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>2,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

sp\u0103lare invers\u0103<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Dedurizare ap\u0103<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

2,0 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>4,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

2,0 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>3,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

regenera<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Solu\u021bie de HCl <\/span><\/span><\/span>4 <\/span><\/span><\/span><\/span>~ 5%<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

1,0 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>1,5<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

2,0 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>3,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

\u00eenlocuire<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Dedurizare ap\u0103<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

1,0 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>1,5<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

1,0 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>1,5<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

cl\u0103tire<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Dedurizare ap\u0103<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

10 <\/span><\/span><\/span><\/span>p\u00e2n\u0103 la <\/span><\/span><\/span><\/span>15<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

3,0 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>5,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

\u00eenro\u0219irea fe\u021bei<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Dedurizare ap\u0103<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

10 <\/span><\/span><\/span><\/span>p\u00e2n\u0103 la <\/span><\/span><\/span><\/span>15<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

2,0 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>5,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

func\u021bionare<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Lichior de zah\u0103r<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

2,0 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>4,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

30 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>60<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

(2) procesul de func\u021bionare a r\u0103\u0219inii anionice<\/span><\/span><\/span><\/span><\/p>\n

3.<\/span><\/span><\/span><\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n
\n

Opera\u021biune<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Solu\u0163ie<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Debit (BV\/h)<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Volum (BV)<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

recuperarea zah\u0103rului<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Dedurizare ap\u0103<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

2,0 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>4,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

2,0 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>3,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

sp\u0103lare invers\u0103<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Dedurizare ap\u0103<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

2,0 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>4,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

1,5 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>3,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

regenera<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Solu\u021bie de NaOH <\/span><\/span><\/span>4 <\/span><\/span><\/span><\/span>~ 5%<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

1,5 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>2,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

2,5 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>4,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

\u00eenlocuire<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Ap\u0103 deionizat\u0103 sau ap\u0103 de ie\u0219ire din patul de cationi<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

1,5 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>2,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

1,5 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>2,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

cl\u0103tire<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Ap\u0103 deionizat\u0103 sau ap\u0103 de ie\u0219ire din patul de cationi<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

10 <\/span><\/span><\/span><\/span>p\u00e2n\u0103 la <\/span><\/span><\/span><\/span>15<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

4,0 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>6,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

\u00eenro\u0219irea fe\u021bei<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

ie\u0219irea apei din patul de cationi<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

10 <\/span><\/span><\/span><\/span>p\u00e2n\u0103 la <\/span><\/span><\/span><\/span>15<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

4,0 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>6,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

func\u021bionare<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

Lichior de zah\u0103r<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

2,0 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>4,0<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n

\n

30 <\/span><\/span><\/span><\/span>~ <\/span><\/span><\/span><\/span>60<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Cauzele contamin\u0103rii cu r\u0103\u0219in\u0103 \u0219i metoda de recuperare<\/span><\/span><\/b><\/span><\/span><\/p>\n

(1) Cauzele contamin\u0103rii<\/span><\/span><\/span><\/span><\/p>\n

Deoarece solu\u021bia tratat\u0103 con\u021bine substan\u021be organice, fier, siliciu, microorganisme, coloizi etc., aceste substan\u021be nu pot fi \u00eendep\u0103rtate complet \u00een timpul procesului de filtrare cu c\u0103rbune activ. \u00cen procesul de schimb ionic, aceste substan\u021be se vor adsorbi de matricea r\u0103\u0219inii anionice prin efectele leg\u0103turilor de hidrogen, leg\u0103turilor ionice, leg\u0103turilor covalente, VDW. \u00cen general, dup\u0103 15-30 de cicluri de func\u021bionare, acumul\u0103rile de substan\u021be organice vor afecta capacitatea de schimb a r\u0103\u0219inilor, vor cauza o calitate proast\u0103 a zah\u0103rului, vor necesita mai mult\u0103 ap\u0103 pentru sp\u0103lare, aceasta fiind a\u0219a-numita contaminare organic\u0103.<\/span><\/span><\/span><\/span><\/p>\n

(2) Metoda de recuperare<\/span><\/span><\/span><\/span><\/p>\n

(2.1) sp\u0103la\u021bi \u00een contracurent r\u0103\u0219inile contaminate p\u00e2n\u0103 c\u00e2nd apa de ie\u0219ire este curat\u0103.<\/span><\/span><\/span><\/span><\/p>\n

(2.2) r\u0103\u0219in\u0103 cationic\u0103, de obicei cu contaminare cu fier, se utilizeaz\u0103 o concentra\u021bie de HCL 10-15%, care de dou\u0103 ori volumul de r\u0103\u0219in\u0103, pentru a \u00eenmuia r\u0103\u0219ina timp de 4-8 ore, apoi se spal\u0103 cu ap\u0103 pentru cur\u0103\u021bare.<\/span><\/span><\/span><\/span><\/p>\n

(2.3) R\u0103\u0219in\u0103 anionica, de obicei cu contaminare organic\u0103, se utilizeaz\u0103 HCL 4-5%, \u00eenmuiat\u0103 \u00een dou\u0103 volume de r\u0103\u0219in\u0103 timp de 2-4 ore, apoi se spal\u0103 cu ap\u0103 pentru cur\u0103\u021bare; se amestec\u0103 printr-o solu\u021bie de amestecare 10% NaCL + 3-4% NaOH, \u00eenmuiat\u0103 \u00een trei volume de r\u0103\u0219in\u0103, temperatura trebuie s\u0103 fie de 40\u2103, debitul este de 4 m\u00b3\/h, dup\u0103 ce se trece prin ultimul strat de solu\u021bie, se \u00eencepe \u00eenmuierea timp de 12 ore, apoi se spal\u0103 cu ap\u0103 deionizat\u0103 pentru cur\u0103\u021bare, se observ\u0103 culoarea apei pentru a vedea dac\u0103 este suficient de curat\u0103 \u0219i se decide din nou dac\u0103 este nevoie de tratare.<\/span><\/span><\/span><\/span><\/p>\n

(2.4) dup\u0103 dubla regenerare, ar putea \u00eencepe s\u0103 func\u021bioneze.<\/span><\/span><\/span><\/span><\/p>\n

4. Depozitarea r\u0103\u0219inii<\/span><\/span><\/b><\/span><\/span><\/p>\n

R\u0103\u0219inile neutilizate trebuie p\u0103strate \u00eentr-o pung\u0103 sigilat\u0103, nu expune\u021bi r\u0103\u0219ina la aer \u0219i p\u0103stra\u021bi-o la o temperatur\u0103 cuprins\u0103 \u00eentre 0 <\/span><\/span><\/span><\/span>\u0219i <\/span><\/span><\/span><\/span>40 \u2103. Dac\u0103 r\u0103\u0219ina se opre\u0219te pentru o perioad\u0103 de timp \u00een timpul procesului de operare, evita\u021bi urm\u0103toarele situa\u021bii:<\/span><\/span><\/span><\/span><\/p>\n

(1) Pentru a preveni deshidratarea, umple\u021bi echipamentul cu ap\u0103. Dac\u0103 trebuie s\u0103 goli\u021bi apa, p\u0103stra\u021bi echipamentul etan\u0219 pentru a evita pierderea con\u021binutului de umiditate din r\u0103\u0219in\u0103.<\/span><\/span><\/span><\/span><\/p>\n

(2) Pentru a preveni \u00eenghe\u021barea, dac\u0103 temperatura este sub 0\u2103, trebuie s\u0103 ad\u0103uga\u021bi o solu\u021bie salin\u0103 \u00een echipament pentru a \u00eembiba r\u0103\u0219ina.<\/span><\/span><\/span><\/span><\/p>\n

(3) Preveni\u021bi cre\u0219terea bacteriilor. Dac\u0103 r\u0103\u0219ina este p\u0103strat\u0103 pentru o perioad\u0103 lung\u0103 de timp \u00een echipament, aceasta va dezvolta microorganisme precum alge \u0219i bacterii, ceea ce va cauza contaminarea r\u0103\u0219inii. M\u0103sura preventiv\u0103 este sp\u0103larea complet\u0103 a r\u0103\u0219inii dup\u0103 ce r\u0103\u0219ina \u00ee\u0219i pierde capacitatea de a \u00eendep\u0103rta impurit\u0103\u021bile \u00een suspensie, apoi \u00eenmuierea r\u0103\u0219inii dup\u0103 regenerare.<\/span><\/span><\/span><\/span><\/p>\n

Not\u0103: \u00cenainte de pretratarea r\u0103\u0219inii pentru industria alimentar\u0103, prepara\u021bi apa de dedurizare utiliz\u00e2nd un set de r\u0103\u0219in\u0103 cu pat cationic \u0219i r\u0103\u0219in\u0103 cu pat anionic. P\u0103stra\u021bi apa de dedurizare \u00eentr-un recipient cu ap\u0103 (dac\u0103 nu este suficient\u0103, completa\u021bi din nou). Apa de dedurizare este preg\u0103tit\u0103 pentru sp\u0103larea \u00een contracurent a r\u0103\u0219inii \u00een timpul procesului de pretratare, pentru a prepara acid diluat \u0219i alcali dilua\u021bi \u0219i pentru a evita formarea depunerilor albe, deoarece colectarea apei afecteaz\u0103 apoi efectul de regenerare al r\u0103\u0219inii \u00een perioadele de func\u021bionare ulterioare.<\/span><\/span><\/span><\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

ZHEJIANG ZHENGGUANG INDUSTRIAL CO.,LTD NINGBO ZHENGGUANG RESIN CO.,LTD Metod\u0103 de pretratare \u0219i regenerare a r\u0103\u0219inilor alimentare. \u00cen procesul de producere a r\u0103\u0219inilor schimb\u0103toare de ioni, aceasta apare \u00eentotdeauna cu un num\u0103r mic de polimeri organici cu con\u021binut sc\u0103zut de ioni \u0219i impurit\u0103\u021bi anorganice. De asemenea, unele impurit\u0103\u021bi pot ap\u0103rea odat\u0103 cu produsele \u00een timpul transportului…<\/p>\n","protected":false},"author":1,"featured_media":4946,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[255],"tags":[],"class_list":["post-4944","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized-ro"],"_links":{"self":[{"href":"https:\/\/hydrolite.eu\/ro\/wp-json\/wp\/v2\/posts\/4944","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hydrolite.eu\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hydrolite.eu\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hydrolite.eu\/ro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hydrolite.eu\/ro\/wp-json\/wp\/v2\/comments?post=4944"}],"version-history":[{"count":3,"href":"https:\/\/hydrolite.eu\/ro\/wp-json\/wp\/v2\/posts\/4944\/revisions"}],"predecessor-version":[{"id":4948,"href":"https:\/\/hydrolite.eu\/ro\/wp-json\/wp\/v2\/posts\/4944\/revisions\/4948"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hydrolite.eu\/ro\/wp-json\/wp\/v2\/media\/4946"}],"wp:attachment":[{"href":"https:\/\/hydrolite.eu\/ro\/wp-json\/wp\/v2\/media?parent=4944"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hydrolite.eu\/ro\/wp-json\/wp\/v2\/categories?post=4944"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hydrolite.eu\/ro\/wp-json\/wp\/v2\/tags?post=4944"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}