Acid-alkali Wastewater Treatment Technology
Acid-alkali wastewater is a general term for wastewater generated by industrial processes such as electroplating, pickling, galvanizing, and metal processing, in which the pH of the wastewater is acidic or alkaline, or a mixture of both. Such wastewater contains not only strong acids such as sulfuric acid, hydrochloric acid and nitric acid, or strong bases such as caustic soda, but also toxic metals, which can cause great pollution to the environment if not treated properly.
Therefore, it is necessary to establish a complete acid-alkali wastewater treatment system. The general process of acid-alkali wastewater treatment includes the following steps:
1. Preliminary treatment. Depending on the properties of the wastewater, the pH value needs to be adjusted by acid-base neutralizing to the range between 6 and 8. At the same time, physical sedimentation and oil-water separationtreatment can be used to remove suspended solids and oil, etc.
2. Neutralization. The acid-alkali wastewater is sent to a neutralization tank for neutralization. Lime milk, sodium hydroxide solution, salt solution and sodium sulfide solution areoften used for neutralization, depending on the actual situation.
3. Coagulation and precipitation. Then, the wastewater needs to be sent to the flocculation pool, where a flocculant can be added and stirred to promoteflocculation and sedimentation. This process can remove organicmatter, soluble heavy metals, phosphates, and other colloids.
4. Biological treatment. After sedimentation and filtration, the waste is sent to the biological treatment system for further treatment. The common biological treatment processes for acid-alkali wastewater include aerobic treatment, anaerobic treatment and combination treatment.
5. Membrane separation. Finally, high-quality water can be obtained from the membrane separation unit, which can adsorb and remove a variety of components, such as bacteria, viruses, heavy metals, fine suspended solids, and small colloids, from the wastewater.
The above is a brief introduction to the acid-alkali wastewater treatment process. To ensure the effectiveness of wastewater treatment, it is not only necessary to choose an appropriate process, but also to select advanced, reliable and efficient equipment. Henan Jucheng Environmental Protection has been focusing on the research and production of wastewater treatment equipment for decades, and has provided reliable equipment guaranteefor hundreds of customers around the world. All kinds of equipment, such as neutralization tanks, flocculation tanks and membrane separation units, used in acid-alkali wastewater treatmentare available.
In addition, Henan Jucheng also provides systematic wastewater treatment solutions. It has a professional project design team that can customize wastewater treatment processes and equipment configurations according to the actual situation of customers. All kinds of wastewater can be effectively treated, and then the treated water quality will meet the reuse and discharge standards. Henan Jucheng is committed to providing customers with comprehensive environmental protection services, willing to join hands to create a better future for the world.
英文碱酸废水处理技术
碱酸废水是指电镀、酸洗、镀锌及金属加工等工业过程所产生的废水，其水质pH值呈负值或正值，或两者的混合类型。此类废水中除含有硫酸、盐酸、硝酸等强酸外，还含有烧碱等强碱，如果不加处理容易造成严重的环境污染。
因此，有必要建立一个完整的碱酸废水处理系统。碱酸废水处理的常规流程包括如下步骤：
1. 初步处理。根据废水的特性，需要使用酸碱中和将pH值调整到6~8之间。同时，还可以采用物理沉淀和油水分离处理，以去除悬浮固体和油类等。
2. 中和处理。将酸碱废水送入中和池进行中和操作，中和剂常用石灰乳、氢氧化钠溶液、盐溶液、硫化钠溶液等，具体使用根据实际情况而定。
3. 混凝凝聚。然后将废水发送至混凝池，增加混凝剂搅拌以促进混凝凝聚，并使之沉淀。该步骤可去除有机物、可溶性重金属、磷等颗粒物等。
4. 生物处理。经沉淀及过滤处理后，污水可送入生物处理系统进行进一步处理，碱酸废水常采用好氧处理、厌氧处理及组合处理等生物处理方式。
5. 膜分离处理。最后，从膜分离装置可以获得高质高水，该装置能够吸附并消除废水中病菌、病毒、重金属、细小悬浮固体及小颗粒等一系列成分。
以上是对碱酸废水处理过程的简要介绍，籌建废水处理系统，不仅要选择合适的流程，还要选择先进可靠、高效的设备设备才能保证处理质量，河南聚驰环保数十年来一直致力于污水处理设备的研究与生产，为全球数百家客户提供可靠的设备保障，可提供碱酸废水处理所需的中和槽、混凝池及膜分离单元等各类设备。
另外，河南聚驰还提供系统
