CN114394693A - Clarification treatment method for industrial oily wastewater - Google Patents

Clarification treatment method for industrial oily wastewater Download PDF

Info

Publication number
CN114394693A
CN114394693A CN202210075099.6A CN202210075099A CN114394693A CN 114394693 A CN114394693 A CN 114394693A CN 202210075099 A CN202210075099 A CN 202210075099A CN 114394693 A CN114394693 A CN 114394693A
Authority
CN
China
Prior art keywords
oily wastewater
calcium oxide
container
filtrate
mixed solution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210075099.6A
Other languages
Chinese (zh)
Inventor
汪徐春
韦正兵
姚鑫
张雪梅
周化光
陈俊明
张玉洋
姚悦
王桂玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui University of Science and Technology
Original Assignee
Anhui University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui University of Science and Technology filed Critical Anhui University of Science and Technology
Priority to CN202210075099.6A priority Critical patent/CN114394693A/en
Publication of CN114394693A publication Critical patent/CN114394693A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/281Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/38Treatment of water, waste water, or sewage by centrifugal separation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds

Abstract

A clarification treatment method of industrial oily wastewater comprises the following steps: putting the oily wastewater into a container, and adding micron-sized calcium oxide particles, wherein the proportion of the oily wastewater to the calcium oxide is that 0.5-2.2g of calcium oxide is added into every 15-15mL of the oily wastewater; the temperature in the container is controlled to be 50-80 ℃, and the stirring is carried out for 12 hours at the rotating speed of 100-; adding porous alumina particles into the container, and continuously stirring for 4 hours to obtain a mixed solution, wherein the addition amount of the calcium oxide is 1.0-2.0g per 15-15mL of oily wastewater; transferring the mixed solution into a centrifuge for centrifugation for 3min, wherein the centrifugation rotation speed is 800-; and adding sulfuric acid with the pH value of 2 into the filtrate to adjust the pH value of the filtrate to be neutral, and performing suction filtration again to obtain a clear liquid phase. The method has the advantages of simple steps, stable and efficient treatment effect and low cost.

Description

Clarification treatment method for industrial oily wastewater
Technical Field
The invention relates to a clarification treatment method of industrial oily wastewater.
Background
The oily waste water has wide sources, and the main components of the oily waste water comprise light hydrocarbon, heavy hydrocarbon, fuel oil, tar, lubricating oil, fatty oil, wax oil, soap and the like, and the oil generally exists in four forms of floating oil, dispersed oil, emulsified oil, dissolved oil and the like. The oily wastewater causes serious pollution and damage to water rings, biospheres, air rings and the like, harms human health and living environment, and the treatment of the oily wastewater is a problem which is urgently needed to be solved at present, has important significance for human survival and social sustainable development, and can solve the harm of the oily wastewater.
After the sewage is treated, the sewage can be recycled, and the consumption of water resources is reduced for the production of China. The water treatment technology utilizes related technical means to purify sewage so that the sewage can be continuously used, so that the sewage treatment is extremely important.
Oil pollutants can form an oil film on the water surface to isolate the atmosphere and the water surface, so that the oxygen-enriched condition of the water body is destroyed, and the reduction of dissolved oxygen in the water can cause the death of plankton in the water body due to oxygen deficiency; the photosynthesis of aquatic plants such as algae can be limited, the self-purification function of the water body is influenced, and even the water quality is deteriorated and smelly; aquatic animals and plants such as fish, shrimp, shellfish, etc. are polluted by oily wastewater and will become odorous; toxic and harmful substances are enriched by fishes, shellfishes and the like, and can harm human health through a food chain; the oil spills are stuck on the body surface of the birds, and the birds lose flight ability and even die; animals drink oily wastewater and may be infected with fatal diseases; the accumulated oil on the surface of the body of water may also burn creating safety issues. The oil pollutants can also be attached to the surface of soil particles to form an oil film in the soil, so that air is difficult to penetrate, the normal metabolism of the soil and microorganisms in the soil is damaged, and the normal growth of crops is influenced. The concentration of oily wastewater in the biological treatment system exceeds the standard, the normal metabolism of activated sludge and biological membranes can be influenced, and the quality of effluent water is difficult to ensure.
Disclosure of Invention
The invention aims to solve the technical problem of providing a clarification treatment method for industrial oily wastewater, which has the advantages of simple steps, stable and efficient treatment effect and low cost.
In order to solve the technical problem, the invention provides a clarification treatment method of industrial oily wastewater, which comprises the following steps:
(1) putting the oily wastewater into a container, and adding micron-sized calcium oxide particles, wherein the proportion of the oily wastewater to the calcium oxide is that 0.5-2.2g of calcium oxide is added into every 15-15mL of the oily wastewater;
(2) the temperature in the container is controlled to be 50-80 ℃, and the stirring is carried out for 12 hours at the rotating speed of 100-;
(3) adding porous alumina particles into the container, and continuously stirring for 4 hours to obtain a mixed solution, wherein the addition amount of the calcium oxide is 1.0-2.0g per 15-15mL of oily wastewater;
(4) transferring the mixed solution into a centrifuge for centrifugation for 3min, wherein the centrifugation rotation speed is 800-;
(5) and adding sulfuric acid with the pH value of 2 into the filtrate to adjust the pH value of the filtrate to be neutral, and performing suction filtration again to obtain a clear liquid phase.
The invention has the advantages that: the invention adopts environment-friendly reagent micron-sized calcium oxide particles to carry out lipolysis on long-chain molecules in grease, simultaneously utilizes the large specific surface area and high adsorption energy of the micron-sized calcium oxide particles and porous alumina particles to carry out adsorption and precipitation on organic molecules, and carries out centrifugal separation; and then further adjusting the pH value to be neutral by using dilute sulfuric acid, generating calcium sulfate particles by using excessive calcium ions, further absorbing a little organic molecules remained in the solution by using the generated calcium sulfate particles, and filtering to remove calcium sulfate emulsion particles so as to ensure that the sample meets the requirements of clarification and environmental protection discharge so as to protect water, soil and ecological environment.
Detailed Description
The first embodiment is as follows:
a clarification treatment method of industrial oily wastewater comprises the following steps:
(1) placing 22.0mL of oily wastewater into a round-bottom flask, adding 0.5266g of micron-sized calcium oxide particles, and placing a stirrer;
(2) placing the round-bottom flask in a magnetic stirrer, heating and stirring for 12h, controlling the temperature in the round-bottom flask to be 50 ℃, and the stirring speed to be 100-;
(3) adding 1.0161g of porous alumina particles into the round-bottom flask and continuously stirring for 4 hours to obtain a mixed solution;
(4) transferring the mixed solution into a centrifuge for centrifugation for 3min, wherein the centrifugation speed is 800-;
(5) and adding sulfuric acid with the pH value of 2 into the filtrate to adjust the pH value of the filtrate to 7, and performing suction filtration again to obtain a clear liquid phase.
Example two:
a clarification treatment method of industrial oily wastewater comprises the following steps:
(1) placing 20.0mL of oily wastewater into a round-bottom flask, adding 1.0126g of micron-sized calcium oxide particles, and placing a stirrer;
(2) placing the round-bottom flask in a magnetic stirrer, heating and stirring for 12h, controlling the temperature in the round-bottom flask to be 60 ℃, and the stirring speed to be 100-;
(3) adding 1.0161g of porous alumina particles into the round-bottom flask and continuously stirring for 4 hours to obtain a mixed solution;
(4) transferring the mixed solution into a centrifuge for centrifugation for 3min, wherein the centrifugation speed is 800-;
(5) and adding sulfuric acid with the pH value of 2 into the filtrate to adjust the pH value of the filtrate to 7, and performing suction filtration again to obtain a clear liquid phase.
Example three:
a clarification treatment method of industrial oily wastewater comprises the following steps:
(1) placing 18.0mL of oily wastewater into a round-bottom flask, adding 2.0048g of micron-sized calcium oxide particles, and placing a stirrer;
(2) placing the round-bottom flask in a magnetic stirrer, heating and stirring for 12h, controlling the temperature in the round-bottom flask to be 65 ℃, and the stirring speed to be 100-;
(3) adding 1.0345g of porous alumina particles into the round-bottom flask and continuously stirring for 4 hours to obtain a mixed solution;
(4) transferring the mixed solution into a centrifuge for centrifugation for 3min, wherein the centrifugation speed is 800-;
(5) and adding sulfuric acid with the pH value of 2 into the filtrate to adjust the pH value of the filtrate to 7, and performing suction filtration again to obtain a clear liquid phase.

Claims (1)

1. A clarification treatment method for industrial oily wastewater is characterized by comprising the following steps:
(1) putting the oily wastewater into a container, and adding micron-sized calcium oxide particles, wherein the proportion of the oily wastewater to the calcium oxide is that 0.5-2.2g of calcium oxide is added into every 15-15mL of the oily wastewater;
(2) the temperature in the container is controlled to be 50-80 ℃, and the stirring is carried out for 12 hours at the rotating speed of 100-;
(3) adding porous alumina particles into the container, and continuously stirring for 4 hours to obtain a mixed solution, wherein the addition amount of the calcium oxide is 1.0-2.0g per 15-15mL of oily wastewater;
(4) transferring the mixed solution into a centrifuge for centrifugation for 3min, wherein the centrifugation rotation speed is 800-;
(5) and adding sulfuric acid with the pH value of 2 into the filtrate to adjust the pH value of the filtrate to be neutral, and performing suction filtration again to obtain a clear liquid phase.
CN202210075099.6A 2022-01-22 2022-01-22 Clarification treatment method for industrial oily wastewater Pending CN114394693A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210075099.6A CN114394693A (en) 2022-01-22 2022-01-22 Clarification treatment method for industrial oily wastewater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210075099.6A CN114394693A (en) 2022-01-22 2022-01-22 Clarification treatment method for industrial oily wastewater

Publications (1)

Publication Number Publication Date
CN114394693A true CN114394693A (en) 2022-04-26

Family

ID=81233590

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210075099.6A Pending CN114394693A (en) 2022-01-22 2022-01-22 Clarification treatment method for industrial oily wastewater

Country Status (1)

Country Link
CN (1) CN114394693A (en)

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166033A (en) * 1977-01-07 1979-08-28 Hoechst Aktiengesellschaft Process for the separation of polyvinyl alcohol from aqueous solutions
SU835967A1 (en) * 1979-07-06 1981-06-07 Ташкентский Филиал Всесоюзногонаучно-Исследовательского Институтаводоснабжения, Канализации, Гидро-Технических Сооружений И Инженернойгидрогеологии Method of waste water purification from dyes
SU1691320A1 (en) * 1989-03-01 1991-11-15 Уральский лесотехнический институт им.Ленинского комсомола Method for purifying effluents from petroleum products and oils
WO2003072511A1 (en) * 2002-01-24 2003-09-04 The C & M Group, Llc Mediated electrochemical oxidation of halogenated hydrocarbon waste materials
CN101139141A (en) * 2006-09-08 2008-03-12 周恩民 Phthalic ester plasticizer wastewater preprocessing method
CN101462810A (en) * 2008-07-31 2009-06-24 斯志光 Plasticiser sewage treatment technique
RU2535699C1 (en) * 2013-07-04 2014-12-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кубанский государственный технологический университет" (ФГБОУ ВПО "КубГТУ") Method of recycling oily wastes
CN105198139A (en) * 2015-10-22 2015-12-30 北京赛科康仑环保科技有限公司 Hydrometallurgy industry raffinate waste water COD removal method
CN106794394A (en) * 2014-06-03 2017-05-31 德雷伊利林Pvg有限责任两合公司 Method and apparatus for being demulsified and be combined organic compound in emulsion
CN108203209A (en) * 2018-02-10 2018-06-26 铁岭金铎科技股份有限公司 The processing method of acid-bearing wastewater a kind of generated in acidification oil production process
CN109455886A (en) * 2018-12-28 2019-03-12 温州建源建设有限公司 A kind of town road sewage water treatment method and processing system
CN110877944A (en) * 2019-11-18 2020-03-13 苏州淡林环境科技有限公司 Dichloromethane wastewater treatment method and treatment device
CN211367296U (en) * 2019-11-18 2020-08-28 苏州淡林环境科技有限公司 Dichloromethane waste water treatment device
AU2020102195A4 (en) * 2020-09-10 2020-10-22 Suzhou Xiner Environmental Technology Co., Ltd. Process for recycling alkali liquor and removing antimony through membrane treatment of alkali-minimization wastewater
CN112777779A (en) * 2019-11-11 2021-05-11 广东红海湾发电有限公司 Oily wastewater treatment method

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166033A (en) * 1977-01-07 1979-08-28 Hoechst Aktiengesellschaft Process for the separation of polyvinyl alcohol from aqueous solutions
SU835967A1 (en) * 1979-07-06 1981-06-07 Ташкентский Филиал Всесоюзногонаучно-Исследовательского Институтаводоснабжения, Канализации, Гидро-Технических Сооружений И Инженернойгидрогеологии Method of waste water purification from dyes
SU1691320A1 (en) * 1989-03-01 1991-11-15 Уральский лесотехнический институт им.Ленинского комсомола Method for purifying effluents from petroleum products and oils
WO2003072511A1 (en) * 2002-01-24 2003-09-04 The C & M Group, Llc Mediated electrochemical oxidation of halogenated hydrocarbon waste materials
CN101139141A (en) * 2006-09-08 2008-03-12 周恩民 Phthalic ester plasticizer wastewater preprocessing method
CN101462810A (en) * 2008-07-31 2009-06-24 斯志光 Plasticiser sewage treatment technique
RU2535699C1 (en) * 2013-07-04 2014-12-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кубанский государственный технологический университет" (ФГБОУ ВПО "КубГТУ") Method of recycling oily wastes
CN106794394A (en) * 2014-06-03 2017-05-31 德雷伊利林Pvg有限责任两合公司 Method and apparatus for being demulsified and be combined organic compound in emulsion
CN105198139A (en) * 2015-10-22 2015-12-30 北京赛科康仑环保科技有限公司 Hydrometallurgy industry raffinate waste water COD removal method
CN108203209A (en) * 2018-02-10 2018-06-26 铁岭金铎科技股份有限公司 The processing method of acid-bearing wastewater a kind of generated in acidification oil production process
CN109455886A (en) * 2018-12-28 2019-03-12 温州建源建设有限公司 A kind of town road sewage water treatment method and processing system
CN112777779A (en) * 2019-11-11 2021-05-11 广东红海湾发电有限公司 Oily wastewater treatment method
CN110877944A (en) * 2019-11-18 2020-03-13 苏州淡林环境科技有限公司 Dichloromethane wastewater treatment method and treatment device
CN211367296U (en) * 2019-11-18 2020-08-28 苏州淡林环境科技有限公司 Dichloromethane waste water treatment device
AU2020102195A4 (en) * 2020-09-10 2020-10-22 Suzhou Xiner Environmental Technology Co., Ltd. Process for recycling alkali liquor and removing antimony through membrane treatment of alkali-minimization wastewater

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
于志彬等: "邻苯二甲酸酯类增塑剂水解条件的研究" *
林意;张戎;程振春;: "化学实验室废液处理方法研究" *
郭瑾等: "天然有机物在氧化铝表面的吸附机理研究" *

Similar Documents

Publication Publication Date Title
Priyadharshini et al. Phycoremediation of wastewater for pollutant removal: a green approach to environmental protection and long-term remediation
Lananan et al. Optimization of biomass harvesting of microalgae, Chlorella sp. utilizing auto-flocculating microalgae, Ankistrodesmus sp. as bio-flocculant
Lavrinovičs et al. Review on challenges and limitations for algae-based wastewater treatment
US3431200A (en) Flocculation of suspensions
Atiku et al. Harvesting of microalgae biomass from the phycoremediation process of greywater
CN101870538B (en) Purification method and purification system of kitchen waste water
CN104944711B (en) Method for treating water based on aquatic ecosystem and device thereof
Bhuyar et al. Desalination of polymer and chemical industrial wastewater by using green photosynthetic microalgae, Chlorella sp.
Dar et al. Feasibility of microalgal technologies in pathogen removal from wastewater
CN102765814A (en) Ecological water treatment method
Bhuyar et al. Salinity reduction from poly-chem-industrial wastewater by using microalgae (Chlorella sp.) collected from coastal region of peninsular Malaysia
KR20150100450A (en) Apparatus and Method for Removing Algae
Mahesh et al. Advances in biotechnological tools for bioremediation of wastewater using bacterial–algal symbiotic system
Hodaifa et al. Green techniques for wastewaters
CN204848576U (en) Water treatment facilities based on water ecosystem
CN101870510B (en) Phosphorus-removing algae-inhibiting agent and application thereof
CN114394693A (en) Clarification treatment method for industrial oily wastewater
CN104445454A (en) Acid clay blue alga treating agent and preparation method thereof
Sivasubramanian et al. Large scale phycoremediation of oil drilling effluent
KR101273956B1 (en) Powder contained minerals and the manufacturing method
KR20150117554A (en) Method for Removing Algae in Water
Aulenbach et al. Algae removal by flotation
CN102583704A (en) Processing method of ecological sewage
CN104003576A (en) Eutrophic water body phycomycete symbiosis purification technique
CN110526496A (en) A kind of cosmetics sewage treatment process

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20220426