一． 设备简介

1、 Equipment introduction

造纸废水主要来自造纸工业生产中的制浆和抄纸两个生产过程。制浆是把植物原料中的纤维分离出来，制成浆料，再经漂白，这个过程会产生大量的造纸废水。抄纸是把浆料稀释、成型、压榨、烘干，制成纸张，这个过程也容易产生造纸废水。 造纸废水中水回用系统主要通过废水处理站、调节池、微滤或超滤装置处理、改性RO膜滤装置处理四大环节实现废水回用，经过处理后，回收水质稳定，达到《城市污水再生利用工业用水水质》要求，符合工厂标准，为企业有效节约大量水资源，降低生产成本，实实在在解决了节能减排的问题。

Papermaking wastewater mainly comes from pulping and papermaking processes in papermaking industry. Pulping is to separate the fibers from the plant raw materials, make them into pulp, and then bleach them. This process will produce a lot of papermaking wastewater. Papermaking is to dilute, shape, press and dry the pulp to make paper, which is easy to produce papermaking wastewater. The reclaimed water reuse system of papermaking wastewater mainly realizes the reuse of wastewater through four links: wastewater treatment station, regulating pool, microfiltration or ultrafiltration device, modified RO membrane filter device. After treatment, the recovered water quality is stable, meeting the requirements of "industrial water quality for urban wastewater recycling", meeting the factory standards, effectively saving a lot of water resources for enterprises and reducing production costs, It has solved the problem of energy conservation and emission reduction.

lehu乐虎水务的中水回用设备工艺已采用膜处理技术，包括预处理、超滤系统和反渗透(RO)系统及EDI系统（可选）几部分。由于废水通过现代技术的深度处理能够达到生产用水标准或者生活杂用水标准，使废水能够循环使用，这样企业对于废水这一块的整体运行费用得到大|大的降低，对环境保护起到很大的作用。

Membrane treatment technology has been adopted in the process of reclaimed water reuse equipment of Hongjie water, including pretreatment, ultrafiltration system, reverse osmosis (RO) system and EDI system (optional). Due to the advanced treatment of wastewater by modern technology, it can meet the production water standard or domestic miscellaneous water standard, so that the wastewater can be recycled, so that the overall operation cost of the enterprise for wastewater has been greatly reduced, which plays a great role in environmental protection.

二. 设计标准及依据

2、 Design standard and basis

1. 根据用户提供的详细水质报告“量身定制”。

1. According to the detailed water quality report provided by the user, "customized".

2. 水处理设备技术条件《JB/T 2932-1999》

2. Technical conditions of water treatment equipment JB / T 2932-1999

3. 用于一般景观生态用水符合(CJ/T95-2000),

3. The general landscape ecological water use conforms to (CJ / t95-2000),

4. 用于生活杂用水应符合建设部(CJ/48-1999),

4. Domestic miscellaneous water should meet the requirements of the Ministry of construction (CJ / 48-1999),

5. 用于工业循环冷却水应符合(GB/T50102-2003).

5. The industrial circulating cooling water shall comply with (GB / t50102-2003)

6. 反渗透水处理设备标准《CJ/T119-2000》

6. Standard for reverse osmosis water treatment equipment CJ / t119-2000

7. 低压开关设备和控制设备成套装置《IEC439-1 》

7. Complete set of low voltage switchgear and control equipment iec439-1

三． 工艺流程

3、 Process flow

四． 设计特点

4、 Design features

1. 系统采用全自动控制(同时亦可采用手动控制），系统运行时可设定自动反洗、再生程序；

1. The system adopts full automatic control (manual control is also available), and automatic backwashing and regeneration procedures can be set during system operation;

2. 管道一般采用UPVC材质；

2. UPVC material is generally used for pipes;

3. 集成控制系统和集成仪表系统等，方便操作管理；

3. Integrated control system and instrument system to facilitate operation and management;

4. 设备具有耗材更换自动提示功能，并且耗材的更换周期取决于水质和压力的变化，而非根据耗材的使用时间，考虑到了各地水质的差异，设计更；

4. The equipment has the function of automatic prompt for the replacement of consumables, and the replacement cycle of consumables depends on the change of water quality and pressure, not on the use time of consumables. Considering the difference of water quality in different places, the design is more reasonable;

5. 能有效地进行固液分离，将废水中的悬浮物质、胶体物质、生物单元流失的微生物菌群与已净化的水分开。分离工艺简单，占地面积小，出水水质好，一般不须经三级处理即可回用。

5. It can effectively carry out solid-liquid separation, and separate the suspended matter, colloidal matter, microbial flora lost by biological units from the purified water. The separation process is simple, covers a small area, and the effluent quality is good. Generally, it can be reused without tertiary treatment.

6. 可使生物处理单元内生物量维持在高浓度，使容积负荷大|大提高，使处理单元水力停留时间大|大的缩短，生物反应器的占地面积相应减少。

6. It can keep the biomass in the biological treatment unit at a high concentration, greatly increase the volume load, greatly shorten the hydraulic retention time of the treatment unit, and correspondingly reduce the floor area of the bioreactor.

7. 由于可防止各种微生物菌群的流失，有利于生长速度缓慢的(硝化等)的生长，从而使系统中各种代谢过程顺利进行。

7. Because it can prevent the loss of various microbial flora, it is conducive to the slow growth (nitrification, etc.), so that various metabolic processes in the system can be carried out smoothly.

8. 使一些大分子难降解物的停留时间变长，有利于它们的分解。

8. The longer the residence time of some macromolecular refractory products is beneficial to their decomposition.

9. 膜处理技术与其它的过滤分离技术一样，在长期的运转过程中，膜作为一种过滤介质堵塞，膜的通过水量运转时间而逐渐下降有效的反冲洗和化学清洗可减缓膜通量的下降，维持MBR系统的有效使用寿命。

9. Membrane treatment technology is the same as other filtration and separation technology. In the long-term operation process, the membrane is blocked as a kind of filter medium, and the water flow of membrane decreases gradually with the operation time. Effective backwashing and chemical cleaning can slow down the decline of membrane flux and maintain the effective service life of MBR system.