金海湖湖水经精密过滤-超滤预处理后，预处理出水经高压泵(CRN3-29，格兰富，中国)泵入装有不同数量纳滤膜的脱盐系统，纳滤膜采用商品化聚酰胺4040卷式膜组件（VNF2，贵阳时代沃顿有限公司）。待压力和流速稳定半小时后记录产水含盐量数据，计算脱盐率。 操作压力1.3MPa，进水盐含量7.5g/L，水温30±2℃，进水流量2m3/h，膜组件数为6-8支。测量精确到小数点后两位。纳滤系统脱盐率高于80%，达到任务书考核指标。\n
本数据集主要应用于苦咸水淡化研究。", "ds_source": "
实验获得。", "ds_process_way": "
操作压力1.3 MPa，进水含盐量7.5 g/L，水温30 ± 2℃，进水流量 2 m3/h时，实验获得纳滤系统产水的含盐量，经计算获得脱盐率。", "ds_quality": "
(1)数据生产过程: 金海湖湖水经精密过滤-超滤预处理后，预处理出水经高压泵(CRN3-29，格兰富，中国)泵入装有不同数量纳滤膜的脱盐系统，纳滤膜采用商品化聚酰胺4040卷式膜组件（VNF2，贵阳时代沃顿有限公司）。待压力和流速稳定半小时后记录产水含盐量数据，计算脱盐率。\n
(2)方法: 操作压力1.3MPa，进水盐含量7.5g/L，水温30± 2℃，进水流量2m3/h，膜组件数为6-8支。测量精确到小数点后两位。\n
(3)结果：纳滤系统脱盐率高于80%，达到任务书考核指标。", "ds_acq_start_time": "2020-07-20 00:00:00", "ds_acq_end_time": "2020-09-20 00:00:00", "ds_acq_place": "天津市滨海新区金海湖", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 111702, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "49abcc36-6d9a-49a0-b687-e3550d17d0ca.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "d6a6694f-4988-40e1-ac47-a19692c05b3d", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.5515" ], "quality_level": 3, "publish_time": "2021-10-22 15:26:36", "last_updated": "2025-05-29 17:26:49", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.MDBW.2021.16", "i18n": { "en": { "title": "Tianjin Jinhai Lake water nanofiltration desalination rate data set (July-September 2020)", "ds_format": "excel", "ds_source": "
Experimentally obtained.", "ds_quality": "
(1) Data production process: After the lake water of Jinhai Lake was pre-treated by precision filtration-ultrafiltration, the pre-treated effluent was pumped by a high-pressure pump (CRN3-29, Grundfos, China) into the desalination system fitted with different quantities of nano-filtration membranes, which were made of commercialized polyamide 4040 rolled-type membrane modules (VNF2, Guiyang Times Warden Co., Ltd.). After the pressure and flow rate were stabilized for half an hour, the salinity data of the produced water was recorded and the desalination rate was calculated.\n
(2) Methods: Operating pressure 1.3MPa, salt content of feed water 7.5g/L, water temperature 30± 2℃, feed water flow rate 2m3/h, the number of membrane modules is 6-8 pieces. The measurement is accurate to two decimal places.\n
(3) Result: the desalination rate of nanofiltration system is higher than 80%, which reaches the assessment index of the task book.", "ds_ref_way": "", "ds_abstract": "
After the lake water of Jinhai Lake was pre-treated by precision filtration-ultrafiltration, the pre-treated effluent was pumped by a high-pressure pump (CRN3-29, Grundfos, China) into the desalination system fitted with different quantities of nano-filtration membranes, which were made of commercialized polyamide 4040 rolled-type membrane modules (VNF2, Guiyang Times Warden Co., Ltd.). After the pressure and flow rate were stabilized for half an hour, the salinity data of the produced water was recorded and the desalination rate was calculated. The operating pressure was 1.3MPa, the salt content of influent water was 7.5g/L, the water temperature was 30±2℃, the influent flow rate was 2m3/h, and the number of membrane modules was 6-8. The measurement is accurate to two decimal places. The desalination rate of the nanofiltration system is higher than 80%, reaching the assessment index of the task book.\n
This dataset is mainly applied to the study of brackish water desalination.
", "ds_time_res": "", "ds_acq_place": "Jinhai Lake, Binhai New Area, Tianjin", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Operating pressure 1.3 MPa, feed water salinity 7.5 g/L, water temperature 30 ± 2 ℃, feed water flow rate 2 m3/h when the experiments to obtain the nanofiltration system produced water salinity, was calculated to obtain the desalination rate.", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "纳滤", "脱盐率", "高压泵", "进水盐含量" ], "ds_subject_tags": [ "水文化学" ], "ds_class_tags": [], "ds_locus_tags": [ "天津市滨海新区金海湖" ], "ds_time_tags": [ 2020 ], "ds_contributors": [ { "true_name": "杜润红", "email": "durunhong@tiangong.edu.cn", "work_for": "天津工业大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "杜润红", "email": "durunhong@tiangong.edu.cn", "work_for": "天津工业大学", "country": "中国" } ], "ds_managers": [ { "true_name": "杜润红", "email": "durunhong@tiangong.edu.cn", "work_for": "天津工业大学", "country": "中国" } ], "category": "其他" }