2. Kunzwa kwepolycarboxylic acid mvura inoderedza kudhaka
Madhaka ari mumidziyo yekongiri, jecha nematombo achave nemhedzisiro isingadzoreki pakuita kwekongiri uye kuderedza kushanda kwepolycarboxylic acid mvura inoderedza. Chikonzero chakakosha ndechekuti mushure mekunge iyo polycarboxylic acid inodzikisira mvura yakashambadzirwa nevhu muhuwandu hukuru, chikamu chinoshandiswa kuparadzira simende zvidimbu chinodzikiswa, uye dispersibility inova murombo. Kana madhaka ejecha akakwira, mwero wekudzikisa mvura yepolycarboxylic acid mvura inoderedza inodzikisirwa zvakanyanya, kudonha kwekongiri kuchawedzera, kuyerera kunoderera, kongiri ichaita kuputika, simba richadzikira, uye kusimba kuchaderera.

Pane akati wandei akajairwa mhinduro kudambudziko razvino remadhaka:
(1) Wedzera muyero kana kuwedzera Wedzera kunonoka-kusunungurwa-kudonha-kudzivirira mumiririri mune imwe chikamu, asi kudzora huwandu hwekudzivirira yellowing, kubuda ropa, kupatsanurwa, kubata pasi uye kureba kwenguva yakareba yekrete;
(2) Gadzirisa jecha reshiyo kana kuwedzera huwandu hwemhepo inopinda mumiriri. Pasi pemamiriro ekuvimbisa kushanda kwakanaka uye simba, kuderedza jecha reshiyo kana kuwedzera huwandu hwemhepo inopinza mumiriri kuti iwedzere yemahara yemvura yemukati uye namatidza vhoriyamu yekongiri system, kuitira kugadzirisa kushanda kwekongiri;
(3) Wedzera kana shandura zvikamu zvakakodzera kugadzirisa dambudziko. Ongororo dzakaratidza kuti kuwedzera huwandu hwakakodzera hwesodium pyrosulfite, sodium thiosulfate, sodium hexametaphosphate uye sodium sulfate kune inoderedza mvura inogona kuderedza kukanganiswa kwedhaka remukati kongiri kusvika pamwero wakati. Chokwadi, nzira dziri pamusoro apa hadzigone kugadzirisa matambudziko ese emukati mematope. Pamusoro pezvo, kukanganisa kwedhaka pane kusimba kwekongiri kunoda kuenderera mberi nekudzidza, saka mhinduro yakakosha ndeyekudzikisa madhaka ezvinyorwa.