KR960014010A

KR960014010A - Industrial wastewater treatment method using decontamination process by-product

Info

Publication number: KR960014010A
Application number: KR1019940027242A
Authority: KR
Inventors: 장인순; 박장진; 윤명환; 신진명; 이윤환; 신재인
Original assignee: 신재인; 한국원자력연구소
Priority date: 1994-10-25
Filing date: 1994-10-25
Publication date: 1996-05-22
Also published as: JPH08117761A

Abstract

산업폐수를 처리하는 방법으로서, 먼저 제염공정 부산물인 것으로서, 이온교환막법과 다중 효용 증발관법등을 사용하는 기계염 제조공정에서 발생한 간수, 천일염 제조 공정에서 발생한 간수, 암염이나 천일염으로부터 정제염 제조시 제조공정에서 발생한 간수, 기계염, 천일염, 정제염 보관중에 발생한 간수, 그밖의 소금제조, 보관과정 중 발생한 간수를 그대로 혹은 증발 농축 혹은 여과 등 정제하여 이를 Ca(OH)2 및 NaOH등 알칼리제를 사용 pH=8 이상으로 유지한 염색폐수, 염료폐수, 피혁페수, 인쇄폐수, 제지폐수, 식품폐수, 펄프폐수, 화학폐수 등 산업폐수에 (원 폐수의 pH가 10 이상일 경우는 Ca(OH)2 및 NaOH 등 알칼리제를 사용하지 않을 수 있음)주입하여 (폐수 성상에 따라 응집효과를 높이기 위하여 폐수에 CaCl2나 CaCO3 혹은 CaSO4를 적당량 넣을 수 있음) 이 용액을 수분동안 교반한 후 응집 침전시키거나 또는 침전용액을 여과시켜 색도, 탁도, 부유 고형물, 황, 유기물 등을 저감하는 것을 특징으로 하는 제염공정 부산물을 이용한 산업폐수 처리방법.As a method of treating industrial wastewater, firstly, it is a byproduct of the decontamination process, which is produced in a mechanical salt manufacturing process using an ion exchange membrane method and a multi-effect evaporation tube method, a liver water generated in a natural salt manufacturing process, a rock salt or a natural salt in a manufacturing process in the production of purified salts. Purified water, mechanical salt, sun salt, purified water stored during storage, other salt manufacturing, storage water generated during the storage process as it is or purified by evaporation, concentration or filtration, and using alkaline agent such as Ca (OH) 2 and NaOH to pH = 8 or more For industrial wastewater, such as dyed wastewater, dye wastewater, leather wastewater, printed wastewater, papermaking wastewater, food wastewater, pulp wastewater, and chemical wastewater. (If the pH of the original wastewater is 10 or higher, alkaline agents such as Ca (OH) 2 and NaOH are used.) By injection (in order to increase the coagulation effect depending on the characteristics of the wastewater, an appropriate amount of CaCl2, CaCO3 or CaSO4 can be added to the wastewater) Solution and, after coagulation to precipitate, or filtering the precipitate solution color, haze, suspended solids, sulfur, organic substances such as industrial waste water treatment method characterized in that the decontamination process using by-products of the reduction was stirred for water.

Description

Industrial wastewater treatment method using decontamination process by-product

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims

As a method for treating industrial wastewater, first, the salt produced from the mechanical salt manufacturing process using 1) ion exchange membrane method and the multi-effect evaporation tube method, which are the by-products of decontamination process, 2) the liver water generated from the manufacturing process of sun salt, and 3) the production of purified salt from rock salt or sun salt 4) Mechanical salts, sun salts, salts generated during storage of refined salts, and 5) other salts produced during the manufacturing and storage process, or purified by evaporation or filtration, such as Ca (OH) 2 and NaOH. Dye wastewater, dye waste water, leather waste water, printed waste water, paper waste water, food waste water, pulp waste water, chemical waste water, etc. (2) Alkaline such as Na and NaOH may not be used) (In order to increase the coagulation effect according to the characteristics of wastewater, appropriate amount of CaCl2, CaCO3 or CaSO4 can be added to the wastewater. A method for treating industrial wastewater using a decontamination process by-product, characterized by reducing the color, turbidity, suspended solids, sulfur, organics, etc. by stirring the solution for 0 minutes and then flocculating or precipitating the precipitate solution.

※ Note: The disclosure is based on the initial application.