DF-766 是一种无机阳离子和有机混凝剂的水溶液。它可有效增加工业废水处理过程中通常产生的沉淀金属化合物的粒径。
建议将 DF-766 用作废水的处理化学品，其中金属已被氢氧化物、硫化物、二硫代氨基甲酸盐（CARI-610、CARI-640 和 CARI-650）、硫酸亚铁或硼氢化钠沉淀。
DF-766 可与阴离子聚合物结合使用，以进一步提高沉降速率。该产品非常适用于采用重力澄清或膜微滤的连续流动工艺，以及在浓缩物的批量处理中增强沉降和过滤。
应用
根据具体应用，DF-766 实现快速沉降和极佳液体透明度的最佳浓度由广口瓶测试确定。各种废水污染物的浓度——例如悬浮固体、总溶解固体、COD、BOD 以及油和油脂——都会影响 DF-766 的最佳用量。DF-766 在很宽的 pH 范围内（4.0 到 11.0）都有效。
DF-766 的添加由体积进料控制，与废水进料速率成正比。DF-766 可以在金属沉淀步骤之前、之中或之后添加。最佳添加位置取决于废物成分和可用于进行沉淀的设备。
当用于重力沉降系统时，DF-766 通常与高分子量阴离子聚合物结合使用，后者在 DF-766 之后添加到后面的反应罐中。
建议通过实验室评估来确定使用 DF-766 的最佳条件。DFLOW LLC 将提供现场技术支持以协助可处理性研究。
好处
- 快速沉降和极好的液体透明度
- 在很宽的 pH 范围内有效（4.0 到 11.0）
- 在沉淀金属被氢氧化物、硫化物、二硫代氨基甲酸盐、硫酸亚铁或硼氢化钠踩踏时非常有效
- 与阴离子聚合物结合使用时可增强沉淀
物理数据（典型）
外观：透明液体
比重（H2O = 1）：1.09
密度：9.14 lbs/gal
pH：2.5-3.0
水中溶解度：完全
冰点：-13°F
闪点：不适用
稳定性：稳定正常情况
DF-766 is an aqueous solution of inorganic cationic and organic coagulants. It is effective for increasing the particle size of precipitated metal compounds typically produced in industrial wastewater treatment processes.
DF-766 is recommended as a treatment chemical for effluents, where the metals have been precipitated by hydroxide, sulfide, dithio-carbamates (CARI-610, CARI-640, and CARI- 650), ferrous sulfate, or sodium borohydride.
DF-766 can be used in combination with an anionic polymer to further enhance settling rates. The product is excellent for use in continuous flowing processes that employ gravity clarification or membrane microfiltration as well as to enhance the settling and filtration in batch treatment of concentrates.
Applications
Depending on the specific application, the optimum concentration of DF-766 to achieve rapid settling and superb liquid clarity is determined by jar testing. The concentration of the various wastewater contaminants - such as suspended solids, total dissolved solids, COD, BOD, and oil and grease - all affect the optimum DF-766 dosage. DF-766 is effective over a wide pH range (4.0 to 11.0).
Addition of DF-766 is controlled by volumetric feed, proportional to the wastewater feed rate. DF-766 can be added prior to, during, or after the metal precipitation step. The optimum addition location is a function of the waste composition and the equipment available to perform the precipitation.
When used in a gravity settling system, DF-766 is usually used in combination with a high molecular weight anionic polymer, which is added in a later reaction tank after the DF-766.
Laboratory evaluation is recommended to determine the optimum conditions for use of the DF-766. Dflow LLC will provide on site technical support to assist with the Treatability study.
- Highly effective where precipitated metals have been treaded by hydroxide, sulfide, dithiocarbamates, ferrous sulfate, or sodium borohydride
- Enhances precipitation when used in combination with an anionic polymer
Physical Data (Typical)
Appearance: Clear liquid
Specific gravity (H2O = 1): 1.09
Density: 9.14 lbs/gal
pH: 2.5-3.0
Solubility in water: Complete
Freeze point: -13°F
Flash point: Not applicable
Stability: Stable under normal conditions
