Error message

  • Deprecated function: Return type of DatabaseStatementBase::execute($args = [], $options = []) should either be compatible with PDOStatement::execute(?array $params = null): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2244 of /home/envicon/public_html/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseStatementEmpty::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/envicon/public_html/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseStatementEmpty::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/envicon/public_html/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseStatementEmpty::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/envicon/public_html/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseStatementEmpty::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/envicon/public_html/includes/database/database.inc).
  • Deprecated function: Return type of DatabaseStatementEmpty::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in require_once() (line 2346 of /home/envicon/public_html/includes/database/database.inc).
  • Deprecated function: strlen(): Passing null to parameter #1 ($string) of type string is deprecated in drupal_random_bytes() (line 2268 of /home/envicon/public_html/includes/bootstrap.inc).
  • Deprecated function: Optional parameter $type declared before required parameter $key is implicitly treated as a required parameter in include_once() (line 1389 of /home/envicon/public_html/includes/bootstrap.inc).
  • Deprecated function: Return type of DateObject::__wakeup() should either be compatible with DateTime::__wakeup(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in include_once() (line 143 of /home/envicon/public_html/sites/all/modules/date/date_api/date_api.module).
  • Deprecated function: Return type of DateObject::format($format, $force = false) should either be compatible with DateTime::format(string $format): string, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in include_once() (line 143 of /home/envicon/public_html/sites/all/modules/date/date_api/date_api.module).
  • Deprecated function: Return type of DateObject::setTimezone($tz, $force = false) should either be compatible with DateTime::setTimezone(DateTimeZone $timezone): DateTime, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in include_once() (line 143 of /home/envicon/public_html/sites/all/modules/date/date_api/date_api.module).
  • Deprecated function: Optional parameter $input declared before required parameter $form_state is implicitly treated as a required parameter in include_once() (line 1389 of /home/envicon/public_html/includes/bootstrap.inc).
  • Deprecated function: Optional parameter $data declared before required parameter $name is implicitly treated as a required parameter in require_once() (line 341 of /home/envicon/public_html/includes/module.inc).
  • Deprecated function: Optional parameter $data declared before required parameter $name is implicitly treated as a required parameter in require_once() (line 341 of /home/envicon/public_html/includes/module.inc).
  • Deprecated function: Optional parameter $file declared before required parameter $entity_type is implicitly treated as a required parameter in require_once() (line 341 of /home/envicon/public_html/includes/module.inc).
  • Deprecated function: Optional parameter $account declared before required parameter $entity_type is implicitly treated as a required parameter in require_once() (line 341 of /home/envicon/public_html/includes/module.inc).
  • Deprecated function: Optional parameter $entity declared before required parameter $entity_type is implicitly treated as a required parameter in require_once() (line 341 of /home/envicon/public_html/includes/module.inc).
  • Deprecated function: Optional parameter $account declared before required parameter $entity_type is implicitly treated as a required parameter in require_once() (line 341 of /home/envicon/public_html/includes/module.inc).
  • Deprecated function: Optional parameter $values declared before required parameter $entity_type is implicitly treated as a required parameter in require_once() (line 341 of /home/envicon/public_html/includes/module.inc).
  • Deprecated function: Optional parameter $view_mode declared before required parameter $entity_type is implicitly treated as a required parameter in require_once() (line 341 of /home/envicon/public_html/includes/module.inc).
  • Deprecated function: Optional parameter $langcode declared before required parameter $entity_type is implicitly treated as a required parameter in require_once() (line 341 of /home/envicon/public_html/includes/module.inc).
  • Deprecated function: Optional parameter $input declared before required parameter $form_state is implicitly treated as a required parameter in require_once() (line 8 of /home/envicon/public_html/sites/all/modules/multiupload_filefield_widget/multiupload_filefield_widget.module).
  • Deprecated function: Optional parameter $conditions declared before required parameter $data is implicitly treated as a required parameter in include_once() (line 1389 of /home/envicon/public_html/includes/bootstrap.inc).
  • Deprecated function: Optional parameter $item declared before required parameter $complete_form is implicitly treated as a required parameter in include_once() (line 1389 of /home/envicon/public_html/includes/bootstrap.inc).
  • Deprecated function: rtrim(): Passing null to parameter #1 ($string) of type string is deprecated in url() (line 2349 of /home/envicon/public_html/includes/common.inc).
  • Deprecated function: Optional parameter $base_table declared before required parameter $options is implicitly treated as a required parameter in include_once() (line 3492 of /home/envicon/public_html/includes/bootstrap.inc).
  • Deprecated function: Optional parameter $base_field declared before required parameter $options is implicitly treated as a required parameter in include_once() (line 3492 of /home/envicon/public_html/includes/bootstrap.inc).
  • Deprecated function: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in url_is_external() (line 2393 of /home/envicon/public_html/includes/common.inc).
  • Deprecated function: str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in url_is_external() (line 2395 of /home/envicon/public_html/includes/common.inc).
  • Deprecated function: ltrim(): Passing null to parameter #1 ($string) of type string is deprecated in url() (line 2311 of /home/envicon/public_html/includes/common.inc).

Donor Partners and Clients

Title Project/Research
Alliance for Green Revolution in Africa (AGRA) Monitoring and Evaluation of AGRA’s investments in Tanzania
Royal Tropical Institute AGRA Mixed Methods Annual Outcome Surveys in Tanzania
African Development Bank (AFDB) and Zanzibar Water Authority (ZAWA) Water Sanitation and Hygiene (WASH) Promotion in Schools and Communities in Zanzibar
SNV Netherlands Development Organization Action Research on Sanitation Emptying Services – Occupational Health and Safety
The Wood Foundation Africa Household Baseline Survey for Future Evaluation for the Njombe Outgrowers Project in Njombe District, Njombe Region, Tanzania.
WaterAid Tanzania Household Baseline Study for Project titled “Achieving Universal Access to Adequate, Sustainable and Equitable Sanitation Services in the Cities of Tomorrow”
LEI Wageningen University and Research Centre Household Baseline Study for Future Evaluation for the Mufindi Outgrower Project in Mufindi, Iringa Region, Tanzania.
Tanzania Commission for Science and Technology (COSTECH) Validation of Inclined Plate Settlers (IPS) with Nano-Filters as Treatment Technology for Community Based Potable Water Supply in Sopeko Ward, Monduli District. Integrating Constructed Wetlands Technology with Urban Agriculture and Fish Farming for Improved Agricultural Productivity Through Use of Recycled Wastewater
Global Environment and Technology Foundation Integrated Water Sanitation and Hygiene (iWASH) Program
Vlaamse Interuniversitaire Road (VLIR) of Belgium through University of Dar es Salaam Dissemination of the Sustainable Wastewater Technology of Constructed Wetlands for the Sanitation Service Chain in Tanzania
Florida International University, USA Integrated Water Sanitation and Hygiene (iWASH) Program
Berkeley Air Monitoring Group (Berkeley Air),USA Household Baseline Assessment of Improved Cook Stoves
Sida through Bio-Innovate Africa Program Integrated Process for Sustainable Agro Process Waste Treatment and Climate change Mitigation in Eastern Africa Transfer Of Constructed Wetland Technology For Decentralized Wastewater Treatment
The United States Agency for International Development USAID The Water and Development Alliance (WADA I)/ Assessment of Environmental Management System (EMS) in Industries. TCMP SUCCESS- Water Supply Sanitation and Hygiene Project.
College of Engineering and Technology of the University of Dar es Salaam Market Based Approaches for the Diffusion of Clean Cooking Solutions in Kenya and Tanzania. Baseline Survey for Assessment of Improved Cook Stoves.
Tanga Fresh Limited Improve Performance of Wastewater Management System at Tanga Fresh Limited
Karibu Textile Mills Ltd Improvement of Environmental Management Profile at Karibu Textile Mills (KTM)

Working Partners

Title Contacts
WWS Design and Development Company Limited

Plot No 414, Block B, Sinza Palestina,
 P.O. Box 77266 Dar es Salaam, Tanzania
Tel.: +255 0787 640302, 0787640302
Email: wwsconsultants@gmail.com
Website: www.wwconsultants.co.tz
AGENDA for Environment and Responsible Development

Mashujaa Street, Sinza
P.O. Box 77266 Dar es Salaam, Tanzania
Email: agenda@agenda-tz.org
Website: agenda-tz.org
 
BIOCON

P.O. Box 1597, Plot No. 7, Block 22, Room 216, Condo Building, 
Court Road, Kaloleni, Arusha, Tanzania 
Website: www.biocon.co.tz
University of Dar es Salaam, WSP/CW Research Group, of the College of Engineering and Technology

P.O.Box 35131, Dar es Salaam
wspcw@udsm.ac.tz
www.wspcw.udsm.ac.tz