CN105314716A

CN105314716A - Composite flocculation oil removal agent for treatment of oil-containing sewage

Info

Publication number: CN105314716A
Application number: CN201410254042.8A
Authority: CN
Inventors: 蒋寿悟
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-06-10
Filing date: 2014-06-10
Publication date: 2016-02-10

Abstract

A composite flocculation oil removal agent for treatment of oil-containing sewage is prepared by compounding the following components, by weight, 50-90% of aluminum sulfate, 5-20% of magnesium chloride, 4-20% of magnesium hydroxide, 0.5-5% of bentonite and 0.5-5% of polyacrylamide, wherein all the components are crushed and mixed together at normal temperature.

Description

A kind of composite flocculation deoiling agent for oily water treatment

Technical field

The invention belongs to field of Environment Protection, relate to a kind of compound method of the composite flocculation deoiling agent for oily water treatment, be specially adapted to process the pre-treatment of various oily(waste)water as refinery, oilfield sewage.

Background technology

In Wastewater Pretreatment, coagulation technology is one of technology wherein obtaining widespread use the most.Along with increasingly sharpening of environmental pollution, the Control and treatment of water environment pollution causes the enough attention of people gradually and obtains the progress of each side.Coagulation technology with the particulate form impurity removed in water body and can strengthen the removal of solute and the solid-liquid separation etc. of mud in water body.Flocculation agent is one of key link of coagulation technology, can be divided into inorganic and organic floculant by its chemical property.Due to organic polymer coargulator can strengthen adsorption bridging effect or flocking settling performance, consumption is few, but there is toxicity problem, and price is high.Many-sided advantages such as inorganic coagulant has nontoxic (or low toxicity), inexpensive, raw material is easy to get.

Summary of the invention

The object of the invention is the advantage that will utilize inorganic flocculating agent and organic floculant; The composite flocculation deoiling agent that a kind of consumption is few, oil removal efficiency is high, preparation is simple, cost is low is provided.

A kind of composite flocculation deoiling agent for oily water treatment, its compound method is composited by Tai-Ace S 150, magnesium chloride, magnesium hydroxide, wilkinite and polyacrylamide, the weight percent of each composition is: Tai-Ace S 150 50%-90%, magnesium chloride 5%-20%, magnesium hydroxide 4%-20%, wilkinite 0.5%-5%, polyacrylamide 0.5%-5%, is pulverized and mixed at normal temperatures.Present invention utilizes the advantage of inorganic flocculating agent and organic floculant, biochemical reaction is sent out in dissolution process when applying, the inorganic flocculating agent Al13 of nascent state can be produced by analysis, its activity is very high, polyacrylamide produces bridging action simultaneously, thus having under the common existent condition of the active particle of strong absorption property, adsorption activity point is increased, and the alumina blossom particles that flocculation is formed increases.New producing without solid particulate matter in medicament dissolution process, and wilkinite price is very low.

Product of the present invention has the features such as consumption is few, oil removal efficiency is high, preparation is simple, cost is low, is specially adapted to process the pre-treatment of various oily(waste)water as refinery, oilfield sewage.

Embodiment

Embodiment 1

Flocculation deoiling agent forms: Tai-Ace S 150 50%, magnesium chloride 20%, magnesium hydroxide 20%, wilkinite 5%, polyacrylamide (positively charged ion, molecular weight 1,200 ten thousand) 5%.

Certain refinery industrial sewage, before its process, water quality is: oily 100mg/l, COD1211mg/l, above-mentioned flocculation deoiling agent is made into the aqueous solution by 5: 95 (weight), add air-floating apparatus with pump, add-on is that after 10mg/l. process, water quality condition is COD530mg/l, clearance 56%, oil 28mg/l, clearance reaches 72%.

Embodiment 2

Flocculation deoiling agent forms: Tai-Ace S 150 89.5%, magnesium chloride 2%, magnesium hydroxide 3%, wilkinite 5%, polyacrylamide (positively charged ion, molecular weight 1,200 ten thousand) 0.5%. distilled water stirs in a kettle. and is made into 30% product.

The oily(waste)water that certain desalting in oil refinery device is discharged, oily 510mg/l, COD3210mg/l before process, suspended substance 330mg/l, water discharge line is added with pump, add-on is 3 the said products 30mg/l, and through settling separation device, after process, water quality condition is: oily 28mg/l, clearance 95%, COD530mg/l, clearance 84.5%, suspended substance 18mg/l clearance reaches 94.6%.

Claims

1. the composite flocculation deoiling agent for oily water treatment, it is characterized in that compound method adopting Tai-Ace S 150, magnesium chloride, magnesium hydroxide, wilkinite and polyacrylamide are composited, the weight percent of each composition is: Tai-Ace S 150 50%-90%, magnesium chloride 5%-20%, magnesium hydroxide 4%-20%, wilkinite 0.5%-5%, polyacrylamide 0.5%-5%, is pulverized and mixed at normal temperatures.