CN106673335A - 红薯酒精废水的处理方法 - Google Patents

红薯酒精废水的处理方法 Download PDF

Info

Publication number
CN106673335A
CN106673335A CN201611256208.5A CN201611256208A CN106673335A CN 106673335 A CN106673335 A CN 106673335A CN 201611256208 A CN201611256208 A CN 201611256208A CN 106673335 A CN106673335 A CN 106673335A
Authority
CN
China
Prior art keywords
waste water
sedimentation basin
treatment
tower
solid
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
CN201611256208.5A
Other languages
English (en)
Inventor
龙炳清
刘澜
冯莎莎
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.)
Sichuan Normal University
Original Assignee
Sichuan Normal University
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 Sichuan Normal University filed Critical Sichuan Normal University
Priority to CN201611256208.5A priority Critical patent/CN106673335A/zh
Publication of CN106673335A publication Critical patent/CN106673335A/zh
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
    • C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4676—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electroreduction
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
    • C02F2003/003—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms using activated carbon or the like
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/04—Flow arrangements
    • C02F2301/046—Recirculation with an external loop
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/28—Anaerobic digestion processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

本发明介绍的红薯酒精废水的处理方法包括液固分离、在超声波作用下CO2加压铁碳微电解、厌氧、好氧和生物滤塔处理等工序，处理后的废水可稳定达标排放。

Description

红薯酒精废水的处理方法
技术领域
本发明涉及红薯酒精废水的一种处理方法。
背景技术
红薯是生产酒精的主要原料之一，其生产产生的有机废水中污染物COD浓度高，成分复杂，处理难度大。该废水若不处理直接排入环境，将对环境造成严重污染。目前红薯酒精废水的处理方法主要是生物处理法。由于红薯酒精废水中含有持久性有机污染物（含苯环和（或）杂环有机物），特别是采用鲜红薯为主要原料时，持久性有机污染物的浓度较高，由此造成生物法处理红薯酒精废水很难稳定达标排放。开发能稳定达标排放的红薯酒精废水的处理方法具有较大实用价值。
发明内容
针对目前红薯酒精废水处理方法的问题，本发明的目的是寻找能稳定达标排放的红薯酒精废水的处理方法，其特征在于将红薯酒精废水进行液固分离，分离出的废水进入调节池，分离出的固体作饲料。经调节池调节后的红薯酒精废水送入耐压铁炭微电解（又称内电解）塔，在超声波作用下通入工业CO2进行微电解处理。铁炭微电解塔中铁：炭的比例为8：1～1：4。废水在铁炭微电解塔中的停留时间20min～40min。反应温度为25℃～60℃。CO2的压力为0.1MPa～0.6MPa。每立方米废水（包括铁碳所占体积）输入超声波的功率为2kW～8kW。微电解处理后的废水用石灰乳或其他碱性物质调节其pH值到7.0～8.5，然后进入沉淀池沉淀1h～3h，不定期从沉淀池中抽出污泥进行过滤，滤饼作一般固体废弃物处置，滤液和沉淀池的上清液送厌氧反应器。废水在厌氧反应器中停留24h～120h。厌氧温度为25℃～55℃。厌氧后的废水进入生物好氧池常温处理，好氧处理时间为4h～12h。好氧处理后的废水进入沉淀池沉淀1h～3h，不定期从沉淀池中抽出污泥进行过滤，滤饼作一般固体废弃物处置，滤液返回好氧池。沉淀池的上清废水送多层生物滤塔处理。生物滤塔的填料为活性炭或多孔陶粒，每层厚度为0.5m～1.0m,总厚度为1m～3m。生物滤塔的优势菌种为光合细菌中的红假单胞菌（Rhodopseudomonas）。生物滤塔的水力负荷为50m3/m2.d～150m3/m2.d。生物滤塔的出水达标排放或回用。
本发明的目的是这样实现的，红薯酒精废水的固态物质较多，在进入铁碳微电解塔前，进行液固分离，避免固态物质对铁碳微电解的影响。废水进入铁碳微电解塔后，废水中的大分子有机物，特别是持久性有机污染物（含苯环和（或）杂环等的有机物）通过铁碳微电解产生的强还原自由基的作用而破坏，为后续生化处理创造有利条件。通入压力CO2的目的是维持铁碳微电解合适的pH值（2.0～5.0）;输入超声波的作用是加速铁碳微电解的传质过程。铁碳微电解后的废水用石灰乳或其他碱性物质调节其pH，以满足后续厌氧和好氧过程的要求。经前述处理的废水在厌氧过程中，通过微生物的作用，大分子有机物进一步变成小分子有机物，为后续生物氧化创造更有利条件。通过生物氧化处理，剩余的大多数有机物被去除，同时去除氮磷等污染物。废水最后进入活性炭或多孔陶粒生物滤塔，在微生物，特别是红假单胞菌的作用下，进一步去除有机物和氮磷等污染物，保证处理后的废水稳定达标排放。
相对于现有方法，本发明的突出优点是采用铁碳微电解，将废水中的持久性有机污染物破坏，为后续生物处理创造有利条件，从而保证处理后的废水稳定达标排放；相对于在其它废水处理中使用的铁碳微电解法，采用CO2代替目前广泛使用的硫酸作酸化剂，不引入SO4 2-离子，消除了产生H2S的物质基础，从而避免了H2S的污染，同时也避免了SO4 2-对厌氧和好氧过程中微生物的抑制作用，大大提高生物处理的效率；红薯酒精厂都建有锅炉，燃料燃烧产生的CO2废气可充分利用，不仅可降低处理成本，而且可以减少碳排放；处理后的废水能稳定达标排放，具有明显的经济效益和环境效益。
具体实施方法
实施例1：每天处理1m3红薯酒精废水（成分： CODCr38500 mg/L、T-N42.2m/L、SS28000mg/L、 T-P4.5mg/L、色度750），经液固分离、铁碳微电解（20min、40℃、CO2压力0.6MPa、铁：炭的比例为8：1、每立方米废水输入的超声波功率为4kW）、厌氧（pH8.5、72h、25℃～35℃）、好氧（4h）和生物滤塔（多孔陶粒填料层总厚度2m、水力负荷150m3/m2.d）处理后出水的CODCr为48mg/L、T-N5.9mg/L、T-P0.2mg/L、色度13。
实施例2：每天处理5m3红薯酒精废水（成分CODCr40500 mg/L、T-N45.1m/L、SS31500mg/L、 T-P4.2mg/L、色度780），经液固分离、铁碳微电解（35min、25℃、CO2压力0.1MPa、铁：炭的比例为1：4、每立方米废水输入超声波的功率为2kW）、厌氧（pH7.0、24h、35℃～55℃）、好氧（8h）和生物滤塔（活性炭填料层总厚度1m、水力负荷50m3/m2.d）处理后出水的CODCr为50mg/L、T-N6.0mg/L、T-P0.2mg/L、色度15。

Claims (1)

1.一种红薯酒精废水的处理方法，其特征在于将红薯酒精废水进行液固分离，分离出的废水进入调节池，分离出的固体作饲料，经调节池调节后的红薯酒精废水送入耐压铁炭微电解塔，在超声波作用下通入工业CO2进行微电解处理，铁炭微电解塔中铁：炭的比例为8：1～1：4，废水在铁炭微电解塔中的停留时间20min～40min，反应温度为25℃～60℃,CO2的压力为0.1MPa～0.6MPa，每立方米废水输入超声波的功率为2kW～8kW，微电解处理后的废水用石灰乳或其他碱性物质调节其pH值到7.0～8.5，然后进入沉淀池沉淀1h～3h，不定期从沉淀池中抽出污泥进行过滤，滤饼作一般固体废弃物处置，滤液和沉淀池的上清液送厌氧反应器，废水在厌氧反应器中停留24h～120h，厌氧温度为25℃～55℃，厌氧后的废水进入生物好氧池常温处理，好氧处理时间为4h～12h，好氧处理后的废水进入沉淀池沉淀1h～3h，不定期从沉淀池中抽出污泥进行过滤，滤饼作一般固体废弃物处置，滤液返回好氧池，沉淀池的上清废水送多层生物滤塔处理，生物滤塔的填料为活性炭或多孔陶粒，填料总厚度为1m～3m，生物滤塔的优势菌种为光合细菌中的红假单胞菌，生物滤塔的水力负荷为50m3/m2.d～150m3/m2.d，生物滤塔的出水达标排放或回用。
CN201611256208.5A 2016-12-30 2016-12-30 红薯酒精废水的处理方法 Pending CN106673335A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611256208.5A CN106673335A (zh) 2016-12-30 2016-12-30 红薯酒精废水的处理方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611256208.5A CN106673335A (zh) 2016-12-30 2016-12-30 红薯酒精废水的处理方法

Publications (1)

Publication Number Publication Date
CN106673335A true CN106673335A (zh) 2017-05-17

Family

ID=58872499

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611256208.5A Pending CN106673335A (zh) 2016-12-30 2016-12-30 红薯酒精废水的处理方法

Country Status (1)

Country Link
CN (1) CN106673335A (zh)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101665311A (zh) * 2009-09-24 2010-03-10 中南大学 高浓度难降解有机废水的催化微电解组合工艺

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101665311A (zh) * 2009-09-24 2010-03-10 中南大学 高浓度难降解有机废水的催化微电解组合工艺

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
宋志伟 等: "《水污染控制工程》", 31 July 2013, 中国矿业大学出版社 *
湖南省爱国卫生运动委员会办公室 等: "《爱国卫生运动工作手册》", 31 July 1986, 湖南人民出版社 *
陈武 等: "《环境污染治理的电化学技术》", 31 March 2013, 石油工业出版社 *

Similar Documents

Publication Publication Date Title
CN106673335A (zh) 红薯酒精废水的处理方法
CN106746282A (zh) 红薯酒精废水的处理方法
CN106630448A (zh) 煤焦油废水的处理方法
CN106746283A (zh) 红薯酒精废水的处理方法
CN106673360A (zh) 煤焦油废水的处理方法
CN106746250A (zh) 红薯酒精废水的处理方法
CN106517689A (zh) 煤焦油废水的处理方法
CN106630438A (zh) 煤焦油废水的处理方法
CN106746237A (zh) 红薯酒精废水的处理方法
CN106517693A (zh) 煤焦油废水的处理方法
CN106673337A (zh) 红薯酒精废水的处理方法
CN106698827A (zh) 红薯酒精废水的处理方法
CN106517692A (zh) 煤焦油废水的处理方法
CN106830501A (zh) 煤焦油废水的处理方法
CN106698837A (zh) 合成制药有机废水的处理方法
CN106673351A (zh) 丙丁总溶剂生产废水的处理方法
CN106673361A (zh) 煤焦油废水的处理方法
CN106746321A (zh) 煤焦油废水的处理方法
CN106673336A (zh) 红薯酒精废水的处理方法
CN106746284A (zh) 红薯酒精废水的处理方法
CN106630466A (zh) 合成制药有机废水的处理方法
CN106746285A (zh) 红薯酒精废水的处理方法
CN106630463A (zh) 煤焦油废水的处理方法
CN106630460A (zh) 煤气发生炉产生的酚氰废水的处理方法
CN106517684A (zh) 煤焦油废水的处理方法

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

Application publication date: 20170517

RJ01 Rejection of invention patent application after publication