{"id":7090,"date":"2024-07-08T07:18:10","date_gmt":"2024-07-08T07:18:10","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=7090"},"modified":"2026-04-28T10:42:31","modified_gmt":"2026-04-28T10:42:31","slug":"responding-to-the-governments-environmental-protection-requirements-the-five-situations-and-countermeasures-of-the-secondary-sedimentation-tank-effluent-with-mud","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/pt\/responding-to-the-governments-environmental-protection-requirements-the-five-situations-and-countermeasures-of-the-secondary-sedimentation-tank-effluent-with-mud\/","title":{"rendered":"Em resposta \u00e0s exig\u00eancias de prote\u00e7\u00e3o ambiental do governo, as cinco situa\u00e7\u00f5es e contramedidas do efluente do tanque de sedimenta\u00e7\u00e3o secund\u00e1rio com lama"},"content":{"rendered":"<h1>Em resposta \u00e0s exig\u00eancias de prote\u00e7\u00e3o ambiental do governo, as cinco situa\u00e7\u00f5es e contramedidas do efluente do tanque de sedimenta\u00e7\u00e3o secund\u00e1rio com lama<\/h1>\n<p><!-- lc-qa-start --><\/p>\n<p><strong>Quick answer:<\/strong> Wastewater and treatment-process decisions are usually made by looking at influent composition, process stage, compliance target, and whether the proposed adjustment still behaves well at plant scale. The most useful answer almost always comes from system-level diagnosis, not a single metric.<\/p>\n<p><!-- lc-qa-end --><\/p>\n<p><strong>Exist\u00eancia de carga de choque<\/strong><\/p>\n<p><strong>Ponto de julgamento:<\/strong> O efluente \u00e9 acompanhado de turbidez.<\/p>\n<p><strong>An\u00e1lise:<\/strong> A carga de lodo ativado causada pela descarga de material particulado arrastado pela \u00e1gua \u00e9, em sua maioria, part\u00edculas de lodo ativado n\u00e3o assentadas, pelo impacto da atividade do lodo ativado para aumentar a atividade do lodo ativado, devido \u00e0 alta atividade entre as part\u00edculas que faz com que a flocula\u00e7\u00e3o das part\u00edculas de lodo ativado seja fraca. Ambos apresentam muitas part\u00edculas finas de lodo ativado n\u00e3o floculado.<\/p>\n<p><strong>Desempenho do \u00edndice de controle de processos:<\/strong><\/p>\n<p>1.SV: decanta\u00e7\u00e3o lenta, turbidez difusa do sobrenadante.<\/p>\n<p>2.DO: o mesmo DO de aera\u00e7\u00e3o \u00e9 obviamente baixo, cerca de 30% mais baixo.<\/p>\n<p>3. Crescimento do lodo: o crescimento do lodo \u00e9 r\u00e1pido, cerca de 20% por dia.<\/p>\n<p>4. F\/M: F\/M superior a 0,5.<\/p>\n<p>5. Contramedidas: A redu\u00e7\u00e3o da carga de choque pode ser obtida com a homogeneiza\u00e7\u00e3o da qualidade e da quantidade de \u00e1gua na \u00e1rea de materializa\u00e7\u00e3o. Aumente tamb\u00e9m o MLSS para neutralizar a carga.<\/p>\n<p><strong>Envelhecimento de lodo ativado<\/strong><\/p>\n<p><strong>Pontos para julgamento:<\/strong> O sobrenadante tem flocos finos e inst\u00e1veis, mas a \u00e1gua intersticial \u00e9 clara.<\/p>\n<p><strong>An\u00e1lise:<\/strong> causas do envelhecimento do lodo ativado:<\/p>\n<p>\u2460 descarga de lama fora do prazo; \u2461 concentra\u00e7\u00e3o muito baixa de \u00e1gua de alimenta\u00e7\u00e3o; \u2462 controle de MLSS muito alto.<\/p>\n<p><strong>Desempenho do \u00edndice de controle de processos:<\/strong><\/p>\n<p>1.SV30: aumento da velocidade de assentamento (90% do processo em 3 minutos); aumento da compressibilidade do lodo ativado (SV30 menor que 8%); a cor do assentamento \u00e9 muito escura (marrom escuro).<\/p>\n<p>2. DO: aera\u00e7\u00e3o reduzida O DO ainda est\u00e1 alto.<\/p>\n<p>3. Crescimento do lodo: reduzido em rela\u00e7\u00e3o a antes.<\/p>\n<p>4. Contramedidas: Controle o valor de F\/M Evite a opera\u00e7\u00e3o de baixa carga a longo prazo Aumente a concentra\u00e7\u00e3o de substrato influente e reduza o MLSS.<\/p>\n<p><strong>Envenenamento por lodo ativado<\/strong><\/p>\n<p><strong>Pontos para julgamento:<\/strong> Se os protozo\u00e1rios desaparecerem obviamente, acompanhados pela descarga de \u00e1gua com part\u00edculas suspensas, a DQO da \u00e1gua do efluente aumentar\u00e1 obviamente.<\/p>\n<p><strong>An\u00e1lise:<\/strong> O metabolismo normal do lodo ativado \u00e9 afetado pelo impacto e pela inibi\u00e7\u00e3o de subst\u00e2ncias t\u00f3xicas, resultando na morte de parte do lodo ativado perif\u00e9rico, que \u00e9 ent\u00e3o desintegrado e parcialmente dissolvido na mistura, levando a um aumento significativo na DQO do efluente.<\/p>\n<p><strong>Desempenho do \u00edndice de controle de processos:<\/strong><\/p>\n<p>1.SV: turbidez do sobrenadante, cor escura do lodo, o sobrenadante est\u00e1 sempre em um estado turvo e o tempo de assentamento n\u00e3o tem rela\u00e7\u00e3o.<\/p>\n<p>2.DO: a mesma for\u00e7a de aera\u00e7\u00e3o DO \u00e9 maior do que o normal.<\/p>\n<p>3. Crescimento do lodo: o lodo novo n\u00e3o \u00e9 vis\u00edvel, o MLSS est\u00e1 diminuindo. Durante o per\u00edodo de diminui\u00e7\u00e3o da concentra\u00e7\u00e3o de lodo ativado, a desintegra\u00e7\u00e3o formal do lodo ativado continua, e as part\u00edculas presas na \u00e1gua de drenagem s\u00e3o mais \u00f3bvias, e geralmente voltam ao normal em uma semana ap\u00f3s a elimina\u00e7\u00e3o dos materiais t\u00f3xicos ou inertes. No entanto, durante o per\u00edodo de recupera\u00e7\u00e3o, devido \u00e0 forte atividade de crescimento do lodo, a \u00e1gua de drenagem ainda \u00e9 arrastada com part\u00edculas.<\/p>\n<p>4. Contramedidas: Aumentar a descarga de lodo e substituir o lodo ativado inibido.<\/p>\n<p><strong>Fen\u00f4meno de desnitrifica\u00e7\u00e3o no processo de sedimenta\u00e7\u00e3o<\/strong><\/p>\n<p><strong>Ponto de julgamento:<\/strong> O g\u00e1s gerado no processo de desnitrifica\u00e7\u00e3o faz com que o lodo flutue.<\/p>\n<p><strong>An\u00e1lise:<\/strong> A concentra\u00e7\u00e3o da mistura de lodo ativado \u00e9 alta e a aera\u00e7\u00e3o \u00e9 seriamente insuficiente, juntamente com a mistura que cont\u00e9m nitrog\u00eanio amoniacal, nitrog\u00eanio org\u00e2nico e outras rea\u00e7\u00f5es de desnitrifica\u00e7\u00e3o, o que faz com que o lodo ativado se assente na boia.<\/p>\n<p><strong>Desempenho do \u00edndice de controle de processos:<\/strong><\/p>\n<p>1.SV: o lodo ativado primeiro se assenta e depois flutua; o lodo ativado afundar\u00e1 novamente ap\u00f3s a mistura.<\/p>\n<p>2.DO: condi\u00e7\u00e3o an\u00f3xica.<\/p>\n<p>3. Contramedidas: melhorar a aera\u00e7\u00e3o; melhorar a concentra\u00e7\u00e3o de substrato; reduzir o teor de nitrog\u00eanio da \u00e1gua de alimenta\u00e7\u00e3o para evitar o desequil\u00edbrio devido \u00e0 rela\u00e7\u00e3o C\/N.<\/p>\n<p><strong>Aera\u00e7\u00e3o excessiva<\/strong><\/p>\n<p><strong>Pontos de julgamento:<\/strong> a capacidade de flocula\u00e7\u00e3o enfraquece, os flocos graves n\u00e3o t\u00eam a capacidade de flocular.<\/p>\n<p><strong>An\u00e1lise:<\/strong> A aera\u00e7\u00e3o excessiva n\u00e3o favorece o crescimento e a reprodu\u00e7\u00e3o normais do lodo ativado; os flocos de lodo ativado se rompem sob a a\u00e7\u00e3o de bolhas de ar.<\/p>\n<p><strong>Desempenho do \u00edndice de controle de processos:<\/strong><\/p>\n<p>1.SV: durante todo o processo de sedimenta\u00e7\u00e3o, mais part\u00edculas finas no sobrenadante, afundando e flutuando lentamente, e a \u00e1gua entre as part\u00edculas apresenta uma sensa\u00e7\u00e3o de nebulosidade.<\/p>\n<p>2.DO: alta aera\u00e7\u00e3o a longo prazo (baixa carga).<\/p>\n<p>3. Contramedidas: reduzir a aera\u00e7\u00e3o; reduzir a descarga de lodo.<\/p>\n<p>&nbsp;<\/p>\n<table style=\"border-collapse: collapse; width: 667.52pt;\" border=\"0\" width=\"890\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr style=\"height: 63.00pt;\">\n<td class=\"et3\" style=\"height: 63pt; width: 667.5pt; text-align: center;\" colspan=\"2\" width=\"890\" height=\"84\"><strong>Fosfonatos Antiincrustantes, inibidores de corros\u00e3o e agentes quelantes<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/pt\/products\/atmp-cas-6419-19-8\/\">\u00c1cido amino trimetileno fosf\u00f4nico (ATMP)<\/a><\/span><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 6419-19-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/longchangchemical.com\/pt\/products\/hedp-cas-2809-21-4-2\/\">\u00c1cido 1-hidroxi etilideno-1,1-difosf\u00f4nico (HEDP)<\/a><\/span><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 2809-21-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/edtmpa-solid-cas-1429-50-1\/\"><span style=\"color: #00ccff;\">Etileno diamina tetra (\u00e1cido metileno fosf\u00f4nico) EDTMPA (s\u00f3lido)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 1429-50-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/dtpmpa-cas-15827-60-8\/\"><span style=\"color: #00ccff;\">Dietileno Triamina Penta (\u00c1cido Metileno Fosf\u00f4nico) (DTPMPA)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 15827-60-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/pbtc-cas-37971-36-1\/\"><span style=\"color: #00ccff;\">\u00c1cido 2-fosfonobutano -1,2,4-tricarbox\u00edlico (PBTC)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 37971-36-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/hpaa-cas-23783-26-8\/\"><span style=\"color: #00ccff;\">\u00c1cido 2-hidroxi-fosfonoac\u00e9tico (HPAA)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 23783-26-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/hmdtmpa-cas-23605-74-5\/\"><span style=\"color: #00ccff;\">HexaMethyleneDiamineTetra (MethylenePhosphonic Acid) HMDTMPA<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 23605-74-5<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">\u00c1cido poliamino poli\u00e9ter metileno fosf\u00f4nico (PAPEMP)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\"><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/bhmtpmp-cas-34690-00-1\/\"><span style=\"color: #00ccff;\">Bis(\u00c1cido hexa-metileno triamina penta (metileno fosf\u00f4nico)) BHMTPMP<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 34690-00-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/hempa-cas-5995-42-6\/\"><span style=\"color: #00ccff;\">\u00c1cido hidroxietilamino-Di(metileno fosf\u00f4nico) (HEMPA)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 5995-42-6<\/td>\n<\/tr>\n<tr style=\"height: 15.75pt;\">\n<td class=\"et3\" style=\"height: 15.75pt; width: 667.5pt; text-align: center;\" colspan=\"2\" width=\"890\" height=\"21\"><strong>Sais de fosfonatos<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/atmp-na4-cas-20592-85-2\/\"><span style=\"color: #00ccff;\">Sal tetra-s\u00f3dico do \u00e1cido amino trimetileno fosf\u00f4nico (ATMP-Na4)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 20592-85-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/atmp-na5-cas-2235-43-0\/\"><span style=\"color: #00ccff;\">Sal pentass\u00f3dico do \u00e1cido amino trimetileno fosf\u00f4nico (ATMP-Na5)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 2235-43-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/hedp-na-cas-29329-71-3\/\"><span style=\"color: #00ccff;\">Monoss\u00f3dico de \u00e1cido 1-hidroxietilideno-1,1-difosf\u00f4nico (HEDP-Na)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 29329-71-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/hedp-na2-cas-7414-83-7\/\"><span style=\"color: #00ccff;\">\u00a0(HEDP-Na2)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 7414-83-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal tetra-s\u00f3dico do \u00e1cido 1-hidroxietilideno-1,1-difosf\u00f4nico (HEDP-Na4)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 3794-83-0<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal de pot\u00e1ssio do \u00e1cido 1-hidroxi etilideno-1,1-difosf\u00f4nico (HEDP-K2)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 21089-06-5<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal pentass\u00f3dico de etileno diamina tetra (\u00e1cido metileno fosf\u00f4nico) (EDTMP-Na5)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 7651-99-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal hepta-s\u00f3dico do \u00e1cido dietileno triamina penta (metileno fosf\u00f4nico) (DTPMP-Na7)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 68155-78-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal de s\u00f3dio do \u00e1cido dietileno triamina penta (metileno fosf\u00f4nico) (DTPMP-Na2)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 22042-96-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">\u00c1cido 2-fosfonobutano -1,2,4-tricarbox\u00edlico, sal de s\u00f3dio (PBTC-Na4)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 40372-66-5<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal de pot\u00e1ssio do \u00e1cido hexa-metileno-diamina-tetra (metileno-fosf\u00f4nico) HMDTMPA-K6<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 53473-28-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal de s\u00f3dio parcialmente neutralizado do \u00e1cido bishexametileno triamina penta (metileno fosf\u00f4nico) BHMTPH-PN(Na2)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 35657-77-3<\/td>\n<\/tr>\n<tr style=\"height: 31.50pt;\">\n<td class=\"et3\" style=\"height: 31.5pt; width: 667.5pt; text-align: center;\" colspan=\"2\" width=\"890\" height=\"42\"><strong>Antiincrustante e dispersante policarbox\u00edlico<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">\u00c1cido poliacr\u00edlico (PAA) 50% 63%<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 9003-01-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal de s\u00f3dio de \u00e1cido poliacr\u00edlico (PAAS) 45% 90%<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 9003-04-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/hpma-cas-26099-09-2\/\"><span style=\"color: #00ccff;\">Anidrido polimaleico hidrolisado (HPMA)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 26099-09-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Copol\u00edmero de \u00e1cido maleico e acr\u00edlico (MA\/AA)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 26677-99-6<\/td>\n<\/tr>\n<tr style=\"height: 17.00pt;\">\n<td class=\"et5\" style=\"height: 17.00pt;\" height=\"22\">Copol\u00edmero de \u00e1cido acr\u00edlico-2-acrilamido-2-metilpropano sulf\u00f4nico (AA\/AMPS)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 40623-75-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">TH-164 \u00c1cido fosfino-carbox\u00edlico (PCA)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 71050-62-9<\/td>\n<\/tr>\n<tr style=\"height: 31.50pt;\">\n<td class=\"et3\" style=\"height: 31.5pt; width: 667.5pt; text-align: center;\" colspan=\"2\" width=\"890\" height=\"42\"><strong>Antiincrustante e dispersante biodegrad\u00e1vel<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 40.50pt;\">\n<td class=\"et5\" style=\"height: 54.00pt;\" rowspan=\"2\" height=\"72\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/pesa-cas-51274-37-4109578-44-1\/\"><span style=\"color: #00ccff;\">S\u00f3dio do \u00e1cido poliepoxisucc\u00ednico (PESA)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 51274-37-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 109578-44-1<\/td>\n<\/tr>\n<tr style=\"height: 40.50pt;\">\n<td class=\"et5\" style=\"height: 54.00pt;\" rowspan=\"2\" height=\"72\"><a href=\"https:\/\/longchangchemical.com\/pt\/products\/pasp-cas-181828-06-8-35608-40-6\/\"><span style=\"color: #00ccff;\">Sal de s\u00f3dio do \u00e1cido poliasp\u00e1rtico (PASP)<\/span><\/a><\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 181828-06-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 35608-40-6<\/td>\n<\/tr>\n<tr style=\"height: 27.00pt;\">\n<td class=\"et3\" style=\"height: 27pt; width: 667.5pt; text-align: center;\" colspan=\"2\" width=\"890\" height=\"36\"><strong>Biocida e Algicida<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 40.50pt;\">\n<td class=\"et5\" style=\"height: 67.50pt;\" rowspan=\"3\" height=\"90\">Cloreto de benzalc\u00f4nio (cloreto de dodecil dimetil benzil am\u00f4nio)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 8001-54-5,<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 63449-41-2,<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00ba CAS 139-07-1<\/td>\n<\/tr>\n<tr style=\"height: 40.50pt;\">\n<td class=\"et5\" style=\"height: 81.00pt;\" rowspan=\"2\" height=\"108\">Isotiazolinonas<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 26172-55-4,<\/td>\n<\/tr>\n<tr style=\"height: 40.50pt;\">\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 2682-20-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sulfato de tetraquis(hidroximetil)fosf\u00f4nio (THPS)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 55566-30-8<\/td>\n<\/tr>\n<tr style=\"height: 17.00pt;\">\n<td class=\"et5\" style=\"height: 17.00pt;\" height=\"22\">GLUTARALDEHYDE<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 111-30-8<\/td>\n<\/tr>\n<tr style=\"height: 31.00pt;\">\n<td class=\"et3\" style=\"height: 31pt; width: 667.5pt; text-align: center;\" colspan=\"2\" width=\"890\" height=\"41\"><strong>Inibidores de corros\u00e3o<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal de s\u00f3dio do toliltriazol (TTA-Na)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 64665-57-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Toliltriazol (TTA)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 29385-43-1<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal de s\u00f3dio do 1,2,3-benzotriazol (BTA-Na)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 15217-42-2<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">1,2,3-Benzotriazol (BTA)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 95-14-7<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Sal de s\u00f3dio do 2-Mercaptobenzotiazol (MBT-Na)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 2492-26-4<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">2-Mercaptobenzotiazol (MBT)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 149-30-4<\/td>\n<\/tr>\n<tr style=\"height: 15.75pt;\">\n<td class=\"et3\" style=\"height: 15.75pt; width: 667.5pt; text-align: center;\" colspan=\"2\" width=\"890\" height=\"21\"><strong>Absorvedor de oxig\u00eanio<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Ciclohexilamina<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 108-91-8<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Morfolina<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 110-91-8<\/td>\n<\/tr>\n<tr style=\"height: 15.75pt;\">\n<td class=\"et3\" style=\"height: 15.75pt; width: 667.5pt; text-align: center;\" colspan=\"2\" width=\"890\" height=\"21\"><strong>Outros<\/strong><\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Diethylhexyl Sulfosuccinate de s\u00f3dio<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 1639-66-3<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Cloreto de acetila<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 75-36-5<\/td>\n<\/tr>\n<tr style=\"height: 13.50pt;\">\n<td class=\"et5\" style=\"height: 13.50pt;\" height=\"18\">Agente quelante verde TH-GC (\u00e1cido glut\u00e2mico, \u00e1cido N,N-diacetico, sal tetra-s\u00f3dico)<\/td>\n<td class=\"et6\" style=\"width: 159.75pt;\" width=\"213\">N\u00famero CAS 51981-21-6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><!-- lc-commercial-start --><\/p>\n<h2>How technical buyers and operators usually evaluate wastewater-treatment issues<\/h2>\n<p>Most wastewater-treatment problems are system problems. Teams usually get a better result when they define the process stage and water-quality target first, then review biological, chemical, and operational factors together before making a plant-scale correction.<\/p>\n<ul>\n<li><strong>Start from the process stage:<\/strong> pretreatment, biological treatment, sludge handling, and polishing steps can point to very different root causes.<\/li>\n<li><strong>Check the core water-quality data together:<\/strong> pH, COD, nitrogen, salinity, sludge condition, and dissolved oxygen often need to be read as one picture.<\/li>\n<li><strong>Review compliance and operability at the same time:<\/strong> the quickest local fix can still be the wrong commercial move if it destabilizes another part of the plant.<\/li>\n<li><strong>Use pilot or staged validation where possible:<\/strong> wastewater systems often respond differently at scale than they do in simplified bench assumptions.<\/li>\n<\/ul>\n<h3>Recommended product references<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/photoinitiator-cat-261-cas-32760-80-8\/\">CHLUMINIT 261<\/a>:<\/strong> A direct cationic-photoinitiator reference when cationic curing routes are being screened.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/hpma-monomer-cas-27813-02-1\/\">CHLUMICRYL HPMA<\/a>:<\/strong> Useful when more polarity and adhesion support are needed in the reactive package.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/iboa-monomer-cas-5888-33-5\/\">CHLUMICRYL IBOA<\/a>:<\/strong> A strong low-viscosity monomer reference when hardness and good flow both matter.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/pt\/product\/agesindp-d2608r\/\">CHLUMICRYL DP-D2608R<\/a>:<\/strong> A direct dispersant reference for coating and ink formulation work.<\/li>\n<\/ul>\n<h3>FAQ for buyers and formulators<\/h3>\n<p><strong>Why do many wastewater problems resist one-step fixes?<\/strong><br \/>Because the visible symptom is often created by several interacting process variables rather than one isolated cause.<\/p>\n<p><strong>Should operational changes be evaluated only by one output indicator?<\/strong><br \/>Usually no. A stable treatment decision should consider process balance, compliance, sludge behavior, and the effect on downstream steps as well.<\/p>\n<p><!-- lc-commercial-end --><\/p>","protected":false},"excerpt":{"rendered":"<p>Existence of shock load Judgment point: The effluent is accompanied by turbidity. Analysis: Activated sludge load caused by the discharge of water entrained particulate matter is mostly activated sludge particles<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[168],"tags":[],"class_list":["post-7090","post","type-post","status-publish","format-standard","hentry","category-water-treatment"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Responding to the government&#039;s environmental protection requirements, the five situations and countermeasures of the secondary sedimentation tank effluent with mud - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"Existence of shock load Judgment point: The effluent is accompanied by turbidity. 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