在生活污水、食品加工和造纸等工业废水中,含有碳水化合物、蛋白质、油脂、木质素等有机物质。这些物质以悬浮或溶解状态存在于污水中,可通过微生物的生物化学作用而分解。在其分解过程中需要消耗氧气,因而被称为耗氧污染物。这种污染物可造成水中溶解氧减少,影响鱼类和其他水生生物的生长。水中溶解氧耗尽后,有机物进行厌氧分解,产生硫化氢、氨和硫醇等难闻气味,使水质恶化。水体中有机物成分非常复杂,耗氧有机物浓度常用单位体积水中耗氧物质生化分解过程中所消耗的氧量表示。
生活污水处理工程
进水质量
项目 | CODCR/(mg/L) | BOD5/(mg/L) | SS/(mg/L) | PH值 |
污水指标(进水水质) | 200~400
| 100~150 | 100~150
| 6~9 |
排水标准按照GJ25.1-89《生活杂用水标准》、GB50335-2002《污水再生利用工程设计规范》排出
项目 | CODCR/(mg/L) | BOD5/(mg/L) | SS/(mg/L) | PH值 |
污水指标(出水水质) | ≤60
| ≤10 | ≤10
| 6~9 |
去污设备
人工格栅、厌氧亲水性弹性填料、集水井提升泵、接触氧化池填料、填料支架、曝气管、微孔曝气装置、鼓风机、厌氧池布水出水、接触氧化池进出水、斜管填料及支架、沉淀池导流装置、接触氧化池填料支架、接触氧化池填料支架、混合液回流泵、污泥泵、二氧化氯发生器、管道阀门和其他辅材
国内外一般都采用生化方法处理生活污水,因为生活污水的BOD5/CODcr≈0.5,可生化性强。接触氧化法具有容积负荷高,停留时间短,有机物去除效果好,运行简单和占地面积小等优点。为此,我们选用了工艺成熟、运行可靠的接触氧化法。
处理效果:
项目 | CODCR/(mg/L) | BOD5/(mg/L) | SS/(mg/L) | PH值 |
出水水质 | 40
| 6.8 | 5.3
| 6.9 |
济宁天通是一家水处理设备生产和销售集一体的公司,公司拥有高的技术人才,拥有高素质的工作团队,可以及时地为客户提供完善的售后服务。我公司主要产品:水处理设备,污水处理设备、废水处理设备、工业污水设备、农业废水设备、雨水净水设备、医院污水设备、钢厂废水设备、屠宰场废水设备、食品厂废水处理设备等多种设备,可根据要求定制水处理设备。
It contains organic materials such as carbohydrate, protein, grease and lignin in the waste water of domestic sewage, food processing and paper making. These substances are present in the wastewater by suspension or dissolution, which can be decomposed by the biological chemistry of microorganisms. Oxygen is consumed in the process of decomposition and is thus called an oxygen-consuming pollutant. This pollutant can cause the reduction of dissolved oxygen in water, which affects the growth of fish and other aquatic organisms. When dissolved oxygen in water, the anaerobic decomposition of organic matter produces bad odors such as hydrogen sulfide, ammonia and thiol, which can worsen the water quality. The composition of organic compounds in water is very complex, and the oxygen consumption is expressed in the process of chemical and biochemical decomposition of oxygen in water.
Domestic sewage treatment
The water quality
Project CODCR/(mg/L) BOD5/ (mg/L) SS/(mg/L) PH value
Sewage indicators (water quality) 200~400
From 100 to 150, 100 ~ 100
6 ~ 9
The drainage standards were discharged in accordance with gj25.1-89 standard for water consumption and gb50335-2002 sewage recycling engineering design specification
Project CODCR/(mg/L) BOD5/ (mg/L) SS/(mg/L) PH value
The effluent measure (water quality) is less than 60
10 or less 10 or less
6 ~ 9
Decontamination equipment
Artificial grille, anaerobic hydrophilic elastic filler, sump pump, packing, packing support contact oxidation pool revealed the trachea, microporous aeration device, air blower, water YanYangChi cloth, contact oxidation pool water in and out of the water, the inclined tube packing and stents, efficient sedimentation tank guiding device, contact oxidation pool packing stents, contact oxidation pool packing, mixture reflux pump and sludge pump, chlorine dioxide generator, pipes, valves and other auxiliary materials
Biochemical methods are used to treat domestic sewage at home and abroad, because the BOD5/CODcr of domestic sewage is 0.5, which can be biochemical. The contact oxidation method has the advantages of high volume load, short stay time, good removal of organic matter, simple operation and small occupation. To this end, we choose the process of mature and reliable contact oxidation.
Processing effect:
Project CODCR/(mg/L) BOD5/ (mg/L) SS/(mg/L) PH value
Water quality 40
6.8 5.3
6.9
Jining day pass is a set of water treatment equipment production and sales of the company, the company has sophisticated technology talented person, has a high quality work team, can provide customers with perfect after-sales service in a timely manner. My company main products: water treatment equipment, sewage treatment equipment, wastewater treatment, industrial wastewater, agricultural wastewater, rain water purification equipment, hospital sewage equipment, steel plant waste water equipment, slaughterhouse wastewater treatment equipment, food factory waste water treatment equipment and other equipment, can professional custom according to the water treatment equipment.